Question # 1

1 m A is equal to.

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10^-3A

10^-6A

10^-2 A

10^-8A

Multi - meter is an instrument which can be used to measure:

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Current

Potential difference

all of the above

Resistance

The working principle of transformer:

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Electromagnetic conduction

Electrostatic induction

Electric charge

Neutralization

A device that decreases or increases the A.C voltage:

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Transformer

Ammeter

Voltmeter

Fuse

The device used for turning a circuit ON or OFF is.

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Switch

Fuse

Circuit breaker

Earth wire

The instrument that measures current is called.

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Voltmeter

Circuit breaker

Ammeter

Switch

According to ohm's law , current and potential difference are:

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Inversely proportional

Directly proportional

Equal

Non of the above

Galvanometer is used to.

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Detects the current

Measure the current

Measure the resistance

Measrue the voltage

A device which does not allow current to pass through it overt a certain limit:

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Switch

circuit breaker

Resistor

Fuse

The potential of the neutral wire is.

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Zero

+220 volts

220 volts

Changing

The energy produced by the breakdown of chemical bond between atoms:

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Light energy

chemical energy

electrical energy

kinetic energy

The constant in Ohm's law is.

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Current

Resistance

Potential difference

Charge

Multi-meter is also called.

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EVO

OVE

AVO

V0A

Which circuits carry currents to the lights heaters and other appliances:

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parallel circuits

series circuits

common circuits

All of the above

Ammeter is used to.

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Measure the current

Detect the current

Measrue the voltage

None of them

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General Science 10th Class English Medium Chapter 8 Online Test MCQs With Answers

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