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Previous years GATE problems based on Energy Meter (Part 3)
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In this lecture I've discussed previous year GATE problems based on energy meter.

## 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

U
KS
thanks a lot sir
thanks Sir Please make some videos for Circuit theory for je ...
Nice video sir
Pawan Chandani
9 months ago
Thank you...then plz do rate and review this course
sir when part 5 is coming??
Pawan Chandani
a year ago
Measurements Part 5 will be published soon.
Pawan Chandani
a year ago
most probably part 5 will be published tomorrow or day after tomorrow
Biswajit Singh
a year ago
Many Many thanks sir
thanks sir
1. Previous Year GATE problems based on Energy Meter By- Pawan Chandani

2. Q7. A 220V, one-phase watt hour meter records a constant load of 8A for five hours at 0.9 pf. If the meter disc makes 2400 revolutions during this period, what is the meter constant in revolutions/kWh? a) 203 rev/kWh b) 303 rev/kWh (PSPCL JE, 2018) c) 103 rev/kWh d) 403 rev/kWh

3. Q7. A 220V, one-phase watt hour meter records a constant load of 8A for five hours at 0.9 pf. If the meter disc makes 2400 revolutions during this period, what is the meter constant in revolutions/kWh? a) 203 rev/kWh b) 303 rev/kWh (PSPCL JE, 2018) c) 103 rev/kWh d) 403 rev/kWh 220 x 8 X o.9 1.584kn 1000 2400 E (kWh) 303.03 rev/KWh 7.92

4. Q 8. lf an energy meter disc makes 30 revolutions in 200 seconds when a load of 850W is connected to it, the meter constant is rev/kWh.

5. Q 8. If an energy meter disc makes 30 revolutions in 200 seconds when a load of 850W is connected to it, the meter constant is rev/kWh. P 850 0.850 Kn) 3600 30 E (kWh) 0.047 22

6. Q 9. An energy meter is designed to make hundred revolutions of disc for 1 unit energy. Calculate the number of revolutions made by the disc when connected to load carrying 50A at 230V and 0.6 pf for an hour. a) 690 revolutions b) 575 revolutions c) 920 revolutions d) 1150 revolutions (Coal India MT 2017)

7. Q 9. An energy meter is designed to make hundred revolutions of disc for 1 unit energy. Calculate the number of revolutions made by the disc when connected to load carrying 50A at 230V and 0.6 pf for an hour. a) 690 revolutions b) 575 revolutions c) 920 revolutions d) 1150 revolutions (Coal India MT 2016-17) 10DrevK 10D 1 unit - 1 KWh 0 6.9 kW 1000