One advantage of transformer coupling in transistor amplifier is that:

One advantage of transformer coupling in transistor amplifier is that: 

(1) it provides excellent frequency response (2) It is simple and less expensive than others (3) Low power supply may be used (4) High efficiency and high power output is obtained.
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Answer :

One advantage of transformer coupling in transistor amplifier is that: High efficiency and high power output is obtained.

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Related questions

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