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CBSE Class 12-science Answered

A Step up transformer can increase AC voltage the what is the need of an amplifier?
Asked by jithingeo | 17 Feb, 2011, 04:13: PM
answered-by-expert Expert Answer
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.

Regards

Team

Topperlearning

Answered by | 18 Feb, 2011, 11:47: AM

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