Question # 1

If there is divergence of leaves by touching a body with electroscope then the body is:

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Semi conductor

Neutral

charge body

Insulator

Which is not an e.m.f source:

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Generator

Solar cell

Battery

Rheostat

The filament of an electric bulb is made of:

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Nickel

Aluminium

Tungsten

Carbon

Which is the unit of energy:

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KWh

Electron volt

Joule

All of above

Capacitors are mainly used for radio frequency tuning:

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Paper capacitor

Air capacitor

Mica capacitor

Electrolytic capacitor

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

electric field is weak when:

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lines are far apart

lines are close together

no lines are present

lines are directed outside

1.6x10^-19 J= :

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1F

1N

1eV

A dielectric must be:

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Resistor

Insulator

Good conductor

Semi conductor

Nichrome wire is an alloy of:

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Lead and zinc

Silver and copper

Nickel and chromium

Iron and copper

A unit of electric charge, equal to the charge of 6.25x10¹⁸ electrons is:

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Electricity

Coulomb

Electric potential

Volt

Which is not a hardware device?

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CPU

Windows

Keyboard

Mouse

Resistance of a wire of conductor of 2 Ω resistance is doubled:

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4 Ω

6 Ω

8 Ω

10 Ω

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Physics 10th Class English Medium Unit 8 Online Test MCQs With Answers

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