Question :

Rectifiers are used to convert


A) Direct current to Alternating current
B) Alternating current to Direct current
C) high voltage to low voltage
D) low voltage to high voltage

Answer : B

Description :



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Pick out the scalar quantity


A) force
B) pressure
C) velocity
D) acceleration

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Light year is a unit of


A) time
B) distance
C) light
D) intensity of light

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Stars appears to move from east to west because


A) all stars move from east to west
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B) longitudinal
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