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

Question # 1

The unit of resistance is:

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Ω-m

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Question # 2

What is the voltage across a 6Ω resistor when 3 A of current passes through it?

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2 V

9 V

18 V

36 V

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Question # 3

An object is 14 cm in front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror:

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-4.1 cm

-8.2 cm

-9.9 cm

-20 cm

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Question # 4

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

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5.25

2.75

1.69

1.62

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Question # 5

The S.I unit of electric current is:

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Volt

Ampere

Coulomb

Watt

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Question # 6

The characteristics of sound by which we can distinguish between two sounds of same loudness and pitch is called.

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Intensity

Quality

Loudness

Pitch

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Question # 7

The S.I unit of electric power is:

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Volt

Watt

Ampere

Joule

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Question # 8

The unit of potential difference is:

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Volt

Coulomb

Ampere

Joule

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Question # 9

The property of substance, which opposes the flow of current through it is called.

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Resistance

Reactance

Resistivity

None of these

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Question # 10

The equivalent resistance of a parallel combination is

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equal to sum of all resistance

is greater than the largest resistance of combination

is smaller than the smallest resistance of combination

All of these

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Question # 11

When resistance are connected in series the current passing through them is .

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Different

Zero

The same

None of these

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Question # 12

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

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Question # 13

Mathematical formula of electromotive force (e.m.f) is:

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E = W/Q

E = Q/W

E = WQ

E = W2Q

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