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A sine signal with period 2S has a peak of 2V at 0.5S and at 1.5 it was -2V, if this signal is applied to Common drain configured amplifier, What will be the output at t=1S?

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A sine signal with period 2S has a peak of 2V at 0.5S and at 1.5 it was -2V, if this signal is applied to Common drain configured amplifier, What will be the output at t=1S?

(a) 2V

(b) -2V

(c) 0V

(d) 1V

This question was posed to me in an online interview.

My doubt stems from The Common Drain Amplifier topic in portion Field-Effect Transistors of Electronic Devices & Circuits

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Best answer
Correct option is (c) 0V

The best explanation: For the given sine signal, since the period is 2S, the value of voltage at t=1S will be 0V and this signal is provided as input to Common drain configured amplifier which follows the input signal. Therefore the output will be 0 at t=1S.

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