Question # 1

The instrument that measures current is called.

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Voltmeter

Circuit breaker

Ammeter

Switch

The working principle of transformer:

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Electromagnetic conduction

Electrostatic induction

Electric charge

Neutralization

The potential of the neutral wire is.

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Zero

+220 volts

220 volts

Changing

The unit of current in System International is.

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Ampere

Volt

Ohm

Newton

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

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Switch

Fuse

Circuit breaker

Earth wire

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

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Resistance

Current

Potential difference

all of the above

The constant in Ohm's law is.

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Current

Resistance

Potential difference

Charge

Voltmeter is connected in.

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Parallel position

Series position

Both a and b

None of these

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

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Light energy

chemical energy

electrical energy

kinetic energy

Resistance ' R" is equal to.

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I

V

V/I

I/V

A,C electric supply at homes:

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240 volt

50 volt

220 volt

1000 volt

The Si unit of current is:

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Ohm

Ampere

Kilowatt

Coulomb

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 always connected with a circuit in.

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parallal

Series

Both a and b

None of these

Voltmeter is used to.

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Measure current

Measure potential difference

Measure voltage

Both a and b

The SI unit of capacitance is:

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Farad

Ampere

Ohm

Newton

Which of the following is an neutral particle?

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Electron

Proton

Neutron

Alpha particle

The conductors having larges resistance are called:

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Fuses

Switches

Resistors

Capacitors

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