Kirchhoff's Rule
Quick practice
Question 1 of 5
A wheatstone bridge is used to determine the value of unknown resistance X by adjusting the variable resistance Y as shown in the figure. For the most precise measurement of X, the resistances P and Q
A
do not play any significant role
B
should be approximately equal and are small
C
should be very large and unequal
D
should be approximately equal to 2X
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