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 :



Related Questions - 1


The absorption of ink by blotting paper involves


A) viscosity of ink
B) capillary action phenomenon
C) diffusion of ink through the blotting
D) siphon action

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Radiocarbon is produced in the atmosphere as a result of


A) collision between fast neutrons and nitrogen nuclei present in the atmosphere
B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
D) lightning discharge in atmosphere

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A) minimum
B) maximum
C) zero
D) minimum or maximum

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Metals are good conductors of electricity because


A) they contain free electrons
B) the atoms are lightly packed
C) they have high melting point
D) All of the above

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Stars appears to move from east to west because


A) all stars move from east to west
B) the earth rotates from west to east
C) the earth rotates from east to west
D) the background of the stars moves from west to east

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