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Which of the following isn’t true?

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Which of the following isn’t true?

(a) Both transformer and amplifier can provide voltage gain

(b) Both transformer and amplifier can provide current gain

(c) Both transformer and amplifier can provide power gain

(d) None of the mentioned

The question was asked during an interview.

My doubt stems from Amplifiers topic in portion Signals and Amplifiers of Electronic Devices & Circuits

1 Answer

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Right option is (c) Both transformer and amplifier can provide power gain

Best explanation: For an ideal transformer the power input is always equal to the power output. In real conditions there is slight loss of power when transferring the power from an input source to an output source. Amplifiers only provide power gain.

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