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Electrician
Electrician Set-2
Basic Electrical Practice
25

Basic Electrical Practice MCQ with Answers

25) What is the change in value of resistance of the conductor, if its cross section area is doubled?

No change

Decreases 2 times

Increases 2 times

Decreases 4 times

Answer is:

Decreases 4 times

Basic Electrical Practice MCQ with Answers

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Related Basic Electrical Practice MCQ with Answers

26) What is the resistance of Light Dependent Resistor (LDR), if the intensity of light is increased?

Increases

Decreases

Remains same

Becomes infinity

Answer is:

Decreases

27) Which formula is used to calculate the power of a DC circuit?

Voltage x time

Current x voltage

Current x resistance

Voltage x resistance

Answer is:

Current x voltage

28) Calculate the hot resistance of 200W / 250V rated lamp.

31.25 Ohm

62.5 Ohm

312.5 Ohm

625 Ohm

Answer is:

312.5 Ohm

29) What is the value of resistance in an open circuit?

Zero

Low

High

Infinity

Answer is:

Infinity

Basic Electrical Practice MCQ with Answers

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