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Wireman Set-1
Basic Electrical Practice
11

Basic Electrical Practice MCQ with Answers

11) Calculate the value of resistance connected to the supply voltage of 100V and current through 4 A?

0.4 ohm

0.04 ohm

25 ohm

400 ohm

Answer is:

25 ohm

Basic Electrical Practice MCQ with Answers

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Related Basic Electrical Practice MCQ with Answers

12) What is the S.I unit of specific resistance?

Ohm/cm

Ohm/metre²

Ohm-metre

Micro ohm/cm²

Answer is:

Ohm-metre

13) What is the specific resistance value of copper conductor?

1.72 micro ohm/cm²

1.72 micro ohm

1.72 ohm /cm²

1.72 micro ohmmeter

Answer is:

1.72 micro ohmmeter

14) What is the effect in resistance of the conductor, if its diameter is doubled?

Increase to two times

Increase to four times

Decrease to half the value

Decrease to 1/4 th value

Answer is:

Decrease to 1/4 th value

15) Which is directly proportional to the resistance?

Area of cross section

Length

Resistivity

Temperature

Answer is:

Length

Basic Electrical Practice MCQ with Answers

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