Practice current electricity MCQs, grade 10 physics test 1 for online courses learning and test prep, ohm's law multiple choice questions and answers. Ohm's law revision test includes physics worksheets to learn.

Physics multiple choice questions (MCQ) on substances that have constant resistance over wide range of voltages are with options non ohmic, ohmic, resistive and non resistive, ohm's law quiz for competitive exam prep, viva interview questions with answers key. Free physics study guide to learn ohm's law quiz to attempt multiple choice questions based test.

MCQ. Substances that have constant resistance over wide range of voltages are

1. ohmic
2. non ohmic
3. resistive
4. non resistive

A

MCQ. A resistor having resistance 6.2Ω is connected across a battery of 5 V by means of a wire of negotiable resistance. Current passes through the resistor is 0.4 A. The total power produced by the battery is

1. 2 W
2. 3 W
3. 5 W
4. 6 W

A

MCQ. As compare to short wires, long wires have

1. more resistance
2. no resistance
3. less resistance
4. same resistance

A

MCQ. The device that disconnects the supply automatically if current exceeds the normal value is known as

1. circuit breaker
2. fuse
3. cable
4. capacitor

A

MCQ. As per Ohm's law, V (potential difference) is equal to

1. I(current)×R(resistance of the conductors)
2. I(current)/R(resistance of the conductors)
3. R(resistance of the conductors)/I(current)
4. I(current) + R(resistance of the conductors)

A