Class 10 Online Courses

Grade 10 Physics MCQs - Chapter 3

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## Chapter 3 MCQs: Current Electricity Quiz

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

A) ohmic
B) non ohmic
C) resistive
D) non resistive

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

A) 2 W
B) 3 W
C) 5 W
D) 6 W

MCQ: As compare to short wires, long wires have

A) more resistance
B) no resistance
C) less resistance
D) same resistance

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

A) circuit breaker
B) fuse
C) cable
D) capacitor

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

A) I(current)×R(resistance of the conductors)
B) I(current)/R(resistance of the conductors)
C) R(resistance of the conductors)/I(current)
D) I(current) + R(resistance of the conductors)

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