BASIC ELECTRICAL PRACTICE - Practice Mode

1) What is formula to calculate electric power (P)?

P=I<sup>2</sup>xR P=R/V<sup>2</sup> P = IR P =I/V

Correct Answer: P=I<sup>2</sup>xR

2) What is the change in total resistance value, if additional resistor is connected in a parallel circuit?

Decrease Remains same Increase 2 times Increase to 1.5 times

Correct Answer: Decrease

3) Which law states that in each closed circuit the sum of all voltage drops are equal to zero?

Krichoffs current Law Krichoffs voltage Law Law of Resistance Ohm's law

Correct Answer: Krichoffs voltage Law

4) Which law is used to determine the equivalent resistance of the network and the current?

Ohm's law Krichoffs Law Laws of Resistance Lenz's law

Correct Answer: Krichoffs Law

5) Which is the simplest method used to measure low resistance?

Voltmeter ammeter method Slide wire, bridge method Post office base method Kelvin bridge method

Correct Answer: Voltmeter ammeter method

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