Question # 1

The SI unit of resistence.

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Ampere

Volt

Hertz

Ohm

A,C electric supply at homes:

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240 volt

50 volt

220 volt

1000 volt

Which of the following is an neutral particle?

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Electron

Proton

Neutron

Alpha particle

Resistance ' R" is equal to.

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I

V

V/I

I/V

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

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Resistance

Current

Potential difference

all of the above

The SI unit of resistance:

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Volt

Ampere

Ohm (Ω)

Farad

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

The potential of the neutral wire is.

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Zero

+220 volts

220 volts

Changing

Galvanometer is used to.

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Detects the current

Measure the current

Measure the resistance

Measrue the voltage

The instrument that measures current is called.

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Voltmeter

Circuit breaker

Ammeter

Switch

Voltmeter is used to.

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Measure current

Measure potential difference

Measure voltage

Both a and b

Voltmeter is connected in.

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Parallel position

Series position

Both a and b

None of these

Ammeter is used to.

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Measure the current

Detect the current

Measrue the voltage

None of them

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

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Transformer

Ammeter

Voltmeter

Fuse

1 m A is equal to.

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10^-3A

10^-6A

10^-2 A

10^-8A

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

The SI uinit of Capacitance.

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Farad

Micro Farad

Ohm

Volt

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