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A Step up transformer can increase AC voltage the what is the need of an amplifier?

Asked by jithingeo 17th February 2011, 4:13 PM
Answered by Expert
Dear student

A transformer can convert one type of signals into another with amplification but it cannot amplify power; hence we need an amplifier.An amplifier is a device for increasing the power of a signal.


Hope this helps.




Answered by Expert 18th February 2011, 11:47 AM
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