Current electricity multiple choice questions (MCQs), current electricity quiz answers, test prep 1 to learn online high school physics for Cambridge certificate programs. Ohm's law MCQs, current electricity quiz questions and answers for online study. Learn ohm's law, resistors and resistance, resistivity and important factors, hazards of electricity test prep for online teaching certification programs.

Learn high school physics MCQs: 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, with choices 3 w, 2 w, 5 w, and 6 w for online study. Free physics study guide for online learning ohm's law quiz questions to attempt multiple choice test for distance learning classes.

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