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Study high school physics multiple choice questions (MCQs): 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 online e-learning with secondary school learning and high school education with online student portal. Free physics study guide for online learning ohm's law quiz questions 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 resistor is 0.4 A. total power produced by 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: Device that disconnects supply automatically if current exceeds 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