(b) A complementary pair class B push-pull amplifier has a supply voltage of 45 V and the transistors are biased so that they are sinusoidally driven to provide a current 1.2A. Calculate: (i) The output power supplied to a speaker having a resistance of 15 N (ii) The collector efficiency

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Differential amplifier

There are two amplifying stages with common degeneration in a differential amplifier.