BASIC ELECTRICAL PRACTICE - Practice Mode

1) Which is the application of series circuit?

Fuse in circuit Voltmeter connection Electrical lamp in homes Shunt resistor in ammeter

Correct Answer: Fuse in circuit

2) Which method is used for measuring 1 Ohm to 100K Ohm range resistance?

Substitution method Kelvin bridge method Wheat stone bridge method Voltmeter and ammeter method

Correct Answer: Wheat stone bridge method

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

Ohm/cm Ohm/metre<sup>2</sup> Ohm-metre Micro ohm/cm<sup>2</sup>

Correct Answer: Ohm-metre

4) Which electrical quantity affects the heat generated in a conductor?

Voltage Square of the current Square of the resistance Current passed through it

Correct Answer: Square of the current

5) 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

Correct Answer: Decreases 4 times

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