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PYQs on Basic Networks (Q.38-39-40)
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In this lesson I've discussed PYQs based on basic network for SSC JE 2019.

## Pawan Chandani is teaching live on Unacademy Plus

Pawan Chandani
Faculty of GATE/ESE (Electrical Engineering) , Also a YouTuber and teaches Electrical Eng. subjects on YouTube | Jony Ive Award Winner

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1. PYQs on Basic Networks - Pawan Chandani

2. 11:01 AM Saved Preparation Strategy for Electrical & Electronics Measurements O saved Wy-Pavn Chandan ib 128 likes 16 comments Share Edit Review HINDI Basics of Measurements (Hindi) Part 1: Electrical and Electronic Measurements your Pawan Chandani Follow 8.2k Followers 4.7 (260 ratings) Write a review Done Preparation Strategy for Electrical And 01 Electronics Measurements Playing Basics of Measurements (in Hindi) 11:23 02 Error Analysis Part 1 (in Hindi) 03

3. Q.38 For resistance 2Q, 4Q, 5Q, 20 are connected in parallel. Their combined resistance IS a) 1 b) 2 c) 4 d) 5 [SSC JE 2014]

4. Q.38 For resistance 2Q, 4Q, 5Q, 20 are connected in parallel. Their combined resistance IS a) 1 b) 2 c) 4 d) 5 [SSC JE 2014]

5. Q.39 In the figure, the value of R is a) 2.5 b) 5.0 c) 7.5 d) 10.0 [SSC JE 2014] 8A R 10 1052

6. Q.40 The mutual inductance between two closely coupled coil is 1H. If the turns of one coil is decreased to half and those of the other is doubled, new value of the mutual inductance would be a) 1/4 H b) 1 H c) 2 H d) 1/2 H ISSC JE - 2012]

7. Q.40 The mutual inductance between two closely coupled coil is 1H. If the turns of one coil is decreased to half and those of the other is doubled, new value of the mutual inductance would be a) 1/4 H b) 1 H c) 2 H d) 1/2 H ISSC JE - 2012]

8. MN,N2

9. Q.41 Power consumed in the given circuit is a) 100 Watts b) 5 Watts c) 20 Watts d) 40 Watts [SSC JE 2014] 30 2 202 10 v

10. Q.41 Power consumed in the given circuit is a) 100 Watts b) 5 Watts c) 20 Watts d) 40 Watts [SSC JE 2014] 30 S2 8 2002 10 V -30500-+8 4 R_ 30x2 5 20 20

11. Q.42 A 200 W, 200 V bulb and a 100 W, 200 V bulb are connected in series and the voltage of 400 V is applied across the series connected bulbs. Under this condition a) 100 W bulb will be brighter than 200 W bulb b) 200 W bulb wil be brighter than 100 W bulb c) Both the bulbs will have equal brightness d) Both the bulbs will be darker than when they are connected across rated voltage [SSC JE 2014]

12. Q.42 A 200 W, 200 V bulb and a 100 W, 200 V bulb are connected in series and the voltage of 400 V is applied across the series connected bulbs. Under this condition a) 100 W bulb will be brighter than 200 W bulb b) 200 W bulb wil be brighter than 100 W bulb c) Both the bulbs will have equal brightness d) Both the bulbs will be darker than when they are connected across rated voltage SSC JE 2014] -200W v200U 100w v2 200 1 2 2 100 2 Moov

13. Q.42 A 200 W, 200 V bulb and a 100 W, 200 V bulb are connected in series and the voltage of 400 V is applied across the series connected bulbs. Under this condition a) 100 W bulb will be brighter than 200 W bulb b) 200 W bulb wil be brighter than 100 W bulb c) Both the bulbs will have equal brightness d) Both the bulbs will be darker than when they are connected across rated voltage SSC JE 2014] 2 100 2 Moov

14. Q.42 A 200 W, 200 V bulb and a 100 W, 200 V bulb are connected in series and the voltage of 400 V is applied across the series connected bulbs. Under this condition a) 100 W bulb will be brighter than 200 W bulb b) 200 W bulb wil be brighter than 100 W bulb c) Both the bulbs will have equal brightness d) Both the bulbs will be darker than when they are connected across rated voltage 100 [SSC JE 2014] 1 2 400U

15. Q.43 In the network shown, if one of the 4 resistance is disconnected, when the circuit is active, the current flowing now will a) Increase very muclh b) Decrease c) Be zero d) Increase very slightly SSC JE 2014] 2.2 12.

16. Q.43 In the network shown, if one of the 4 resistance is disconnected, when the circuit is active, the current flowing now will a) Increase very muclh b) Decrease c) Be zero d) Increase very slightly SSC JE 2014] 6 2.2 12. 6(+2 10( 1 | decrease /n

17. Q.44 For the circuit shown in figure, when Vs 0, 1 3A. When Vs 200V, what will be the value of I? a) -4 A b) -1 A c) 1A d) 7 A 10.2 20 SSC JE 2014] Is ( 30-2

18. Q.44 For the circuit shown in figure, when Vs 0, 1 3A. When Vs 200V, what will be the value of I? a) -4 A b) -1 A c) 1 A d) 7 A 102 SSC JE 2014] 20 Is ( 30-2 1012 202 34 When U = 200, 202 2o = 3+4.5 30

19. Q.44 For the circuit shown in figure, when Vs 0, 1 3A. When Vs 200V, what will be the value of I? a) -4 A b) -1 A c) 1 A d) 7 A 10.2 SSC JE 2014] 20 Is ( 30-2 1012 20 30- 200 ut 30 54 U200 20

20. 30+22200 = 7.5 20 + 3 ) + 6000 6 00 4500-6000 5 0 IS OO 30 50 14 3D

21. nd Metho Q.44 For the circuit shown in figure, when Vs 0, 1 3A. When Vs 200V, what will be the value of I? a) -4 A b) -1 A c) 1 A d) 7 A 102 SSC JE 2014] 20 Is ( 30-2 1012 20 30- s 200U

22. Q.44 For the circuit shown in figure, when Vs 0, 1 3A. When Vs 200V, what will be the value of I? a) -4 A b) -1 A c) 1 A d) 7 A 10.2 SSC JE 2014] 20 ls ( 30-2 1012 20 When U, = 20o, 30n. s 200U 200 2

23. When U, & ! -> Connecte perposition

24. Q.46 Two wire A and B have the same cross-section and are made of the same material RA 600 2 and RB 100 2. The number of times A is longer than B is SSC JE 2014] b) 6 c) 2

25. Q.46 Two wire A and B have the same cross-section and are made of the same material RA 600 and RB-100 . The number of times A is longer than B is SSC JE 2014] RA LA = 60052 60 ns

26. Q.47 Two 100 W, 200 V lamps are connected in series across a 200 V supply. The total power consumed by each lamp in watts will be a) 200 b) 25 c) 50 d) 100 [SSC JE 2014]

27. Q.47 Two 100 W, 200 V lamps are connected in series across a 200 V supply. The total power consumed by each lamp in watts will be a) 200 b) 25 c) 50 d) 100 [SSC JE 2014] 002 200 esistance of each bulb 200 200-20 200 200 100 400

28. Q.47 Two 100 W, 200 V lamps are connected in series across a 200 V supply. The total power consumed by each lamp in watts will be a) 200 b) 25 c) 50 d) 100 SSC JE 2014] 4002 400 2 200 U /6 80o eac 2 2

29. Q.48 A terminal where three or more branches meet is known asSSc JE -20141 a) Mesh b) Node c) Terminus d) Loop

30. Q.48 A terminal where three or more branches meet is known asSSc JE -20141 a) Mesh b) Node c) Terminus d) Loop s-Node

31. 2.49 Find the current through 5 resistor. a) 3.5 A b) 7.15 A c) 5 A d) 2.85 A [SSC JE 2014] 10A ( 2-2

32. Q.50 Total capacitance between the point L and M in figure is a) 4.05 F b) 1.45 F c) 1.85 uF d) 2.05 F SSC JE -2014] 2uF 2uF ol Payallel LUF 2 1 3 eries arallel 1.2 +1 - 2.2 uF 2uF 1.2 u 243 LUF LuF LuF LNF

33. 1.05 F = 2.2 F 2.2t 4.2 2 F LNF arallel 105+1= 2.05 ,-2.05 ns LuF

34. Q.51 The mutual inductance between two unity coupled coils of 9 H and 4 H will be a) 36 H b) 2.2 H c) 6H d) 13 H [SSC JE 2014]

35. Q.51 The mutual inductance between two unity coupled coils of 9 H and 4 H will be a) 36 H b) 2.2 H c) 6H d) 13 H [SSC JE 2014]

36. Q.52 Determine the voltage at point C shown below with respect to ground: a) 80 V b) 120 V c) 40 V d) 70 V [SSC JE 2014] 1o0S2 120 U 50 .

37. Q.52 Determine the voltage at point C shown below with respect to ground: a) 80 V b) 120 V c) 40 v d) 70 V [SSC JE 2014] 20 50 50 x 20 So+ loo /50

38. Q.53 Three resistors, each of 'R' are connected in star. What is the value of equivalent delta connected resistors? a) 3R b) R/2 [SSC JE 2014] d) R/3

39. Q.53 Three resistors, each of 'R' Q are connected in star. What is the value of equivalent delta connected resistors? a) 3R Q b) R/2 0 c) 2R Q d) R/32 [SSC JE 2014] o/ 3 R 3 R 3 R 3 Star Qelfq T12 5

40. Q.54 Two electric bulbs have tungsten filament of same thickness. If one of them gives 60W, and the other gives 100 W, then a) 60 W and 100 W lamp filaments have equal length. b) 60 W lamp filament has shorter length. c) 100 W lamp filament has longer length. d) 60 W lamp filament has longer length. [SSC JE 2014] 02 1 2 2.

41. f 60W @ 1 100 22 P1 2 3 3 more Lengt

42. Q.55 Find R3 for the circuit shown in figure a) 25 b) 25 m c) 25 d) 25 k [SSC JE 2014] 2. 3 50 mA IO mA

43. Q.55 Find R3 for the circuit shown in figure a) 25 b) 25 mQ c) 25 d) 25 k [SSC JE 2014] 2. 3 50 aA 2

44. Q.55 Find R3 for the circuit shown in figure a) 25 b) 25m c) 25 d) 25 k [SSC JE 2014] 3 50 aA 2 3 R3 /0o0 3 40 mA 0 25

45. Q.56 An ideal voltage source should have a) Infinite source resistance b) Large value of emf c) Small value of emf d) Zero source resistance SSC JE 2014]

46. [SSC JE 2014] Q.56 An ideal voltage source should have a) Infinite source resistance b) Large value of emf c) Small value of emf d) Zero source resistance Idcal Veltage Source-in no intemal voitase drob) Ideal CuentrRino leatare eurrent) 90 (no leaka9e cu rent in

47. Q.57 For the linear circuit shown in figure, When R-, V 20 V; When R = 0, i = 4 A When R-5 , the current I is a) 1 A b) 2 A c) 3 A d) 4 A [SSC JE 2014] linear Circait

48. Q.57 For the linear circuit shown in figure, When R = 09, V = 20 V; When R = 0, l=4A When R = 5 , the current l is a) 1 A b) 2 A c) 3 A d) 4 A SSC JE 2014] near O.C S. C

49. Q.58 In the network shown in the figure, the value of R such that maximum possible power will be transferred to RL is a) 5.76 b) 6.0 c) 10.0 d) 15.0 SSC JE 2014] 10-S2 nol equivalenf resistance across the load Kth. OY OY =2.c

50. Q.58 In the network shown in the figure, the value of RL such that maximum possible power will be transferred to R is a) 5.76 b) 6.0 c) 10.0 d) 15.0 [SSC JE 2014] 10S2 42 1o2 52 8 1o+5) (6+9)- 15 10

51. A8 5 10

52. Q.59 The circuit shown in the given figure is equivalent to a load of a) 4/3 b) 8/3 c) 4 d) 2 [SSC JE 2014] 2

53. [SSC JE 2014] Q.59 The circuit shown in the given figure is equivalent to a load of a) 4/3 b) 8/3 c) 4 d) 2 2

54. -21 2 ns 3

55. SSC JE 2014] Q.60 Find RaB for the circuit shown in the figure a) 18 b) 30 c) 45 d) 68 20 30 5052 AB 102 15 2 8

56. Q.60 Find RaB for the circuit shown in the figure a) 18 b) 30 c) 45 d) 68 SSC JE 2014] 20 30 5052 AB 8 icacon of wheatstone bridge Chac k balance condition

57. Q.60 Find RAB for the circuit shown in the figure a) 180 b) 30 Q c) 45 d) 68 SSC JE 2014] 202 502 AB 102 15 2 8 30030balanced O >

58. Q.61 Calculate the total susceptance of the circuit shown in figure a) 6.67 U b) 1.87 U c) 0.16 d) 0.08 SSC JE 2014] 230<0 0( 39.2

59. Q.61 Calculate the total susceptance of the circuit shown in figure a) 6.67 b) 1.87 c) 0.16 d) 0.08 SSC JE 2014] 3 39 Jmpedance - 2 = Rt (x Co nductance 1 dmitfance susceptance 2

60. susceptance the imaging frt of 9dmittance 5- 11c 230L0 U 142 - 10 5-11 8-J6 (a.jy)(s-jio)o- 3 + 5-11o S5 j1O

61. SS+lo 55- 10 440 + 801-33 o + So 500-250 500 250 3/2S

62. Q.62 The efficiency normally obtained in a circuit under the conditions of maximum power transfer is a) 100 % b) 25% c) 50% d) 75% [SSC JE 2014]

63. Q.62 The efficiency normally obtained in a circuit under the conditions of maximum power transfer is a) 100% b) 25% c) 50% d) 75% [SSC JE 2014]

64. Q.63 Superposition theorem can be applied only to a) Bilateral network b) Linear network c) Nonlinear network d) Linear bilateral network [SSC JE 2014]

65. Q.63 Superposition theorem can be applied only to a) Bilateral network b) Linear network c) Nonlinear network d) Linear bilateral network [SSC JE 2014] per positioy inea, active &dater q -->

66. Q.64 Using Milliman's theorem, find the current through the load resistance Ri of 3 2 resistance shown below: a) 12 A b) 4 A c) 6 A d) 8 A [SSC JE 2014] 3.2 32 3 2

67. \$(8+1' +24) .3 3 3 1 1 3 I G 16U (+ 3+I

68. Q.65 Thevenin's equivalent voltage and resistance between the terminal A and B for network of given figure is: a) 2.5 V, 12.5 b) 2.5 V, 3.75 c) 12.5 V, 3.75 d) 12.5 V, 2.5 [SSC JE 2014] Lo U 3

69. Q.65 Thevenin's equivalent voltage and resistance between the terminal A and B for network of given figure is: a) 2.5 V, 12.5 b) 2.5 V, 3.75 c) 12.5 V, 3.75 d) 12.5 V, 2.5 SSC JE 2014] 15 5 oU 3 A-20 15 oun

70. ng-50 =0 A S.C. both the source th 15 5 (15115) 15 +5 A G -75 -32.5 = 375 a 2 O

71. Q.66 The voltage across the 1 k2 resistor of the network shown in the given figure is a) 2 V b) 4 V c) 6 V d) 1 V [SSC JE 2015] 2k2 Lo U

72. Q.66 The voltage across the 1 k2 resistor of the network shown in the given figure is: a) 2 V b) 4 V c) 6 V d) 1 V SSC JE 2015] 2k2 2kS2 t 2 2K 2K

73. =0 2K 2K 2 48 2 Ans

74. Q.67 In a pure inductive circuit if the supply frequency is reduced t 1/2, the current will a) Be four times as high b) Be doubled c) Be reduced by half d) Be reduced to one fourth [SSC JE 2015]

75. Q.68 An active element in a circuit in one which: a) Receives energy b) Supplies energy c) Dissipates energy d) Both receives and supplies energy ISSC JE - 2015]

76. Q.68 An active element in a circuit in one which a) Receives energy b) Supplies energy c) Dissipates energy d) Both receives and supplies energy ISSC JE - 2015] 8801 ctive elementsiasin ignal e onus, mpli Op-amp nerg

77. Q.69 The superposition is used when the circuit contains: a) Passive elements only b) A single voltage source c) Active elements only d) A number of voltage sources ISSC JE - 2015]

78. Q.69 The superposition is used when the circuit contains: a) Passive elements only b) A single voltage source c) Active elements only d) A number of voltage sources ISSC JE - 2015] ptrpositoncve, inea, ilateral la tera Apply when move than one ources present in the ckt

79. Q.70 If two capacitance C1 and C2 are connected in parallel then equivalent capacitance is given by: a) C,C2 b) C2/C1 c) C+C2 d) C1/C2 [SSC JE 2015]

80. Q.70 If two capacitance C1 and C2 are connected in parallel then equivalent capacitance is given by: a) C1C2 b) C2/C, c) C1 C2 d) C/C2 [SSC JE 2015] G,*c, (c for parallel) 2

81. Q.71 If the coefficient of coupling between two coils is increased, mutual inductance between the coils a) Is decreased b) Remains unchanged c) Is increased d) Changes depend on current only [SSC JE 2015]

82. Q.71 If the coefficient of coupling between two coils is increased, mutual inductance between the coils a) Is decreased b) Remains unchanged c) Is increased d) Changes depend on current only [SSC JE 2015] K= M increase d (c) Constomt

83. Q.72 A linear circuit is one whose parameters a) Do not change with voltage and current b) Change with change in current c) Change with change in voltage d) None of the options [SSC JE 2015]

84. Q.72 A linear circuit is one whose parameters a) Do not change with voltage and current b) Change with change in current c) Change with change in voltage d) None of the options [SSC JE 2015] Aol-- Jn linear circuit para meters Son't change 1n change 52

85. Q.73 For the circuit shown below, find the resistance between points P and Q a)2 b) 1 c) 3 d) 4 [SSC JE 2015] 12 212 12

86. Q.73 For the circuit shown below, find the resistance between points P and Q. a)2 b) 1 c) 3 d) 4 [SSC JE 2015] 12 2 12 2.2

87. eries 1+122 2 . 152 parallel (I n8 12 Pg

88. Q.74 lf 750 is flowing through 11 k of resistance, what is the voltage drop across the resistors? a) 146 V b) 8.25 V c) 14.6 V d) 82.5 V [SSC JE 2015]

89. Q.74 If 750 is flowing through 11 k f resistance, what is the voltage drop across the resistors? a) 146 V b) 8.25 V c) 14.6 V d) 82.5 V [SSC JE 2015] + U 3 825 100

90. Q.75 A primary cell has an emf of 1.5 V. When short circuited, it gives a current of 3 A. The internal resistance of cell is a) 4.5 b) 0.2 c) 0.5 d) 20 [SSC JE 2015]

91. Q.76 Thevenin's theorem can not be applied to a) Passive circuit b) Active circuit c) Nonlinear circuit d) Linear circuit SSC JE 2015]

92. Q.77 One sine wave has a period of 2ms, another has a period of 10 ms. Which sine wave is changing at a faster rate? a) All are at the same rate b) Sine wave with period 2 ms c) Sine wave with period 5 ms d) Sine wave with period of 10 ms [SSC JE 2015] T= ele/sec (b) -_-_-500 H -500 cy T 2m 1oo cycle Sec Lo m

93. Q.78 If the number of turns of a coil is increased, its inductance a) Is decreased b) Remains the same c) Is increased d) None of the options [SSC JE 2015]

94. Q.78 If the number of turns of a coil is increased, its inductance a) Is decreased b) Remains the same c) Is increased d) None of the options [SSC JE 2015] increases Ce

95. Q.79 The unit for permeability is: a) Wb b) At/m c) Wb/At x m d) At/Wb [SSC JE 2015]

96. 0.80 A bar of Iron 1cm2 in cross section has 10-4 wb of magnetic flux in it. If H,- 2000, what is the magnetic field intensity in the bar? a) 398 x 10-4 At/m b) 398 At/m c) 398 x 104 At/m d) 796 x 103 At/m [SSC JE 2015]

97. Q.80 A bar of Iron 1cm2 in cross section has 10-4 wb of magnetic flux in it. If ,-2000, what is the magnetic field intensity in the bar? a) 398 x 10-4 At/m b) 398 At/m c) 398 x 104 At/m d) 796 x 103 At/m [SSC JE 2015] c>_ 10-Y iuen 1 x 1o-7 2000 8 1 397.8 At/m

98. Q.82 Find the node voltage VA a) 5.66 V b) 6 V c) 6.66 V d) 5 V [SSC JE 2015] 1 12 U 123 R 2 8

99. Q. 83 When the current through the coil of an electromagnet reverses, the a) Magnetic field expands b) Magnetic field collapses c) Direction of the magnetic field reverses d) Direction of the magnetic field remains unchanged [SSC JE 2015]

100. Q. 83 When the current through the coil of an electromagnet reverses, the a) Magnetic field expands b) Magnetic field collapses c) Direction of the magnetic field reverses d) Direction of the magnetic field remains unchanged [SSC JE 2015]

101. Q. 84 A node in a circuit is defined as a: a) Junction of two or more elements b) Closes path c) Group of interconnected elements d) Open terminal of an element [SSC JE 2015]

102. Q. 85 When a source is delivering maximum power to the load, the efficiency will be a) Below 50 % b) Maximum c) 50 % d) Above 50 % ISSC JE 2015] MPT

103. Q. 86 The internal resistance of a voltage source is 10 and has 10 V at its terminals. Find the max. power that can be transferred to the load. a) 0.25 W b) 21.4 W c) 2.5 W d) 5 W [SSC JE 2015]

104. Q. 86 The internal resistance of a voltage source is 10 and has 10 V at its terminals. Find the max. power that can be transferred to the load. a) 0.25 VW b) 21.4 W c) 2.5 W d) 5 W SSC JE 2015] IOU ( 2 10 2 100 2.5W max NsCe)

105. Q. 87 During the resistance welding, the heat produced at the point is proportional to a) PR b) Current c) Volt-Ampere d) Voltage [SSC JE 2015]

106. Q. 87 During the resistance welding, the heat produced at the point is proportional to a) PR b) Current c) Volt-Ampere d) Voltage [SSC JE 2015] Heat = 12 Rit eat R ()

107. Q. 89. The current 'I' in the circuit shown below is a) 1A b) 1.7 A c) 2.7 A d) 3.7 A [SSC JE - 2015] 1A 2A 80 1.3A MA 3 A 2A n8

108. Q. 90 Electrical resistivity p is a) High for copper and low for alloy b) Low for copper and high for alloy c) High for copper as well as for alloy d) Low for copper as well as for alloy [SSC JE 2015]

109. Pawan Chandani Leave a 4.8 174.1k views comment Pawan Chandani #1 Educator in GATE (Electrical) Faculty of GATE/ESE (Electrical Engineering), Also a YouTuber and teaches Electrical Eng. subjects on YouTube RATE REVIEW RECOMMEND 6.2k 6 15 Folowers Felowing Couses Message All courses (15) Pawan Chandani VERIFIED Follow Faculty of GATE/ESE (Electrical Engineering), Also a YouTuber and teaches Electrical Eng. subjects on YouTube (Hindi) Part 2- DC Machine: Electrical Engineering 5.0 1.3ks 2 days ago S Pswan Chandani Pawan Chandani To get notifications... (Hindi) Top 100 Important MCQs on Electrical and Electronics Measur... 4.9-3k views 13 days ago Enroll 49 Add to list