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Physics

Physics
The device used to change the speed of an electric fan is

Rectifier
Regulator
Switch
Amplifier

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Physics
Which of the following terms is not used in the field of physics?

Latent heat
Nuclear fusion
Stock value
Refractive index

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Physics
Nuclear reactors used to produce electricity are based on

Superconductivity
Nuclear fusion
Cold fusion
Nuclear fission

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Physics
Which one among the following components is used as an amplifying device?

Capacitor
Transformer
Transistor
Diode

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Physics
The composition of electrician solder is

Iron-37%, tin-63%
Lead-37%, Steel-63%
Lead-37%, tin-63%
Steel-37%, copper-63%

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Physics
Rear view mirror of car is convex or concave?

Concave
Convex
Can't be determined
Both A & B

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