A D.C. generator can be considered as
A. Rectifier
B. Prime mover
C. Rotating amplifier
D. Power pump
Answer: Option C
Solution (By Examveda Team)
A D.C. generator can be considered as a rotating amplifier because it converts mechanical energy into electrical energy by electromagnetic induction.The generated voltage is proportional to the speed of rotation and the magnetic flux, thereby amplifying the mechanical input into an electrical output.
This amplification property is why it is often compared to an amplifier in the electrical domain.
Other options, such as rectifier, prime mover, and power pump, do not match the fundamental operation of a D.C. generator.
Rectifier: Converts AC to DC, not applicable here.
Prime mover: Provides mechanical energy to drive the generator but is not the generator itself.
Power pump: Refers to fluid systems and is unrelated to D.C. generators.
Thus, the correct analogy for a D.C. generator is a rotating amplifier.
This Question Belongs to Electrical Engineering >> D.C. Generators
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A cumulatively compounded long shunt generator when operating as a motor would be
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A DC generator can be considered as a rotating amplifier or amplidyne as it amplifies the signal power through armature current.
(also rotary amplifier or dynamoelec-tric amplifier), an electric machine that is used to amplify, by means of the energy of a prime mover (usually an electric motor), the power of a signal supplied to a field winding. Rotating amplifiers are used in automatic control systems.