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What is the output of a class B amplifier for sinusoidal input?(a) Sinusoidal amplifier(b) Half-sinusoidal(c) Sinusoidal with higher frequency(d) Square waveThis question was posed to me in unit test.This intriguing question comes from Push-Pull Class B Amplifier in section Power Amplifier of Analog Circuits

Answer» CORRECT option is (b) HALF-sinusoidal

The best explanation: If Q-point is in cut-off, then IC varies only in the positive direction, for saturation, it varies in the negative direction. So the output of CLASS B AMPLIFIER is half sinusoidal. There is no effect in the SHAPE or the frequency of the wave.


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