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Physics

Physics
Positive feedback is used in

None of these
Rectifiers
Oscillators
Amplifiers

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

Rectifier
Switch
Regulator
Amplifier

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Physics
Which is an example of Phototropism?

Plant bending toward the light
Roots of a plant following water
Roots growing into the soil
A venus flytrap capturing a fly

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Physics
A fountain pen works on the principle of

Bernoulli's principle
Flow of liquids from higher to lower potential
Viscosity of liquids
Capillary action

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Physics
Which one of the following is an ohmic conductor?

Germanium
Silicon
Carbon
Silver

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Physics
Which process allows water to enter the atmosphere?

Evaporation
Respiration
Transpiration
Condensation

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MORE MCQ ON Physics

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