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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
The following is correct :

All of these
P = VxI
P = V²/R
P = I²xR

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True for DC Circuits.

For single pahse ac P = V I CosØ

DGVCL Exam Paper (12-06-2016)
The energy radiated by Sun on a bright Sunny day is approximately:

800 W/m²
1 kW/m²
700 W/m²
2 kW/m²

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DGVCL Exam Paper (12-06-2016)
The SI unit of energy is :

Newton
Henry
Joule
Coulomb

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DGVCL Exam Paper (12-06-2016)
DGVCL is not distributing electricity in _____ district.

Vadodara
Valsad
Navsari
Tapi

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DGVCL Exam Paper (12-06-2016)
Which of the following does not change in a transformer?

Frequency
Voltage
Current
All of these

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In transformer voltage and current can be raised or lowered.
Frequency remains same
Power and Flux remains almost constant.

DGVCL Exam Paper (12-06-2016)
The arc temperature in Oil Circuit Breaker may reach up to _____

10,000° K
8,000° K
None of these
5,000° K

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