CLASS 10 ELECTRICITY MCQ

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The heating element of an electric iron is made up of

3 points

copper

nichrome

aluminium

iron

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Coulomb is the SI unit of

3 points

charge

current

potential difference

resistance

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Electric power is inversely proportional to(a) resistance(b) voltage(c) current(d) temperature

3 points

resistance

voltage

current

temperature

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The SI unit of resistance is

3 points

Newton

Ohm

watt

joule

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The potential difference applied is directly proportional to current only

3 points

Always

Never

Sometimes

When temperature is constant

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On which of the given resistance does not depend :

3 points

Length of conductor

Area of cross-section

Temperature

Density

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Electric potential is a:

3 points

scalar quantity

Vector quantity

neither scalar nor vector

sometimes scalar and sometimes vector

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To get 2 Ω resistance using only 6 Ω resistors, the number of them required is

3 points

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