Question # 1

The rate of flow of charge through any cross-sectional area is called:

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potential difference

Energy

Coulomb

Electric current

In mathematical form of Ohm's law, "R" is:

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Resistance

Specific resistance

Resistor

Resistivity

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

The equivalent resistance in parallel combination is:

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R_c=R₁+R₂+R₃ +.................+R_n

R_c=1/R₁+1/R₂+1/R₃+.................+1/R_n

a and b

None of these

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

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E = W/Q

E = Q/W

E = WQ

E = W2Q

The S.I unit of electric power is:

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Volt

Watt

Ampere

Joule

Which instrument measures the potential difference:

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Voltmeter

Barometer

Galvanometer

Ammeter

The mirror whose inner surface is reflecting is called:

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Concave mirror

Convex mirror

Mirror

Lens

The current which changes its direction is called:

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Current

A.C.

Conventional current

D.C.

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Physics 10th Class English Medium Unit 5 Online Test MCQs With Answers

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