Question # 1

The SI unit of resistence.

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Ampere

Volt

Hertz

Ohm

The unit of current in System International is.

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Ampere

Volt

Ohm

Newton

The constant in Ohm's law is.

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Current

Resistance

Potential difference

Charge

The device use to store electric current:

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Fuse

Switch

Resistor

Capacitor

The working principle of transformer:

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Electromagnetic conduction

Electrostatic induction

Electric charge

Neutralization

The SI unit of capacitance is:

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Farad

Ampere

Ohm

Newton

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

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Transformer

Ammeter

Voltmeter

Fuse

Voltmeter is connected in.

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Parallel position

Series position

Both a and b

None of these

V_s / V_{p is equal to.}

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Vp / Vs

Np / Ns

Ns / Np

None

Ammeter is always connected with a circuit in.

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parallal

Series

Both a and b

None of these

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

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Inversely proportional

Directly proportional

Equal

Non of the above

The Si unit of current is:

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Ohm

Ampere

Kilowatt

Coulomb

A,C electric supply at homes:

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240 volt

50 volt

220 volt

1000 volt

Resistance ' R" is equal to.

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I

V

V/I

I/V

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

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Switch

Fuse

Circuit breaker

Earth wire

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

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

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Current

Potential difference

all of the above

Resistance

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