Question # 1

Specific resistance of silver = ________ x 10^-sOhm-meter

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5.25

2.75

1.69

1.62

What should household appliances be connected in parallel with the voltage source?

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to increase the resistance of the circuit

to decrease the resistance of the circuit

to provide each appliance the same voltage as the power source

to provide each appliance the same current as the power source

In OR operation inputs are connected as:

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Series

Parallel

Both series or parallel

None of these

Which instrument is used to detect current?

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Galvanometer

Voltmeter

Ammeter

Electroscope

A conductor of electric current is:

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Wood

Rubber

Plastic

Copper

Current is equal to:

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IR²

CV

Q/t

IR

Which instrument measures the potential difference:

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Voltmeter

Barometer

Galvanometer

Ammeter

Electric current in conductors is due to the flow of:

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Positive ions

Negative ions

Positive charge

Free electrons

Which type of image is formed by a convex lens on a screen:

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Inverted and real

Inverted and virtual

Upright and real

Upright and virtual

The S.I unit of potential difference is:

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Ampere

Coulomb

Volt

Watt

What happens to the intensity of the brightness of the lamps connected in series as more and more lamps are added?

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Increases

Decreases

Remains the same

Can not be predicted

Electric potential and e.m.f.

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are the same terms

are the different terms

have different units

both b and c

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10th Class Physics Chapter 14 Current Electricity English Medium KPK Boards Online Mcqs MCQs With Answers

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