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Question

For an ideal MOSFET biased in saturation, the magnitude of the small signal current gain for a common drain amplifier is

Options :

  1. infinite

  2. 1

  3. 100

  4. 0

Show Answer

Answer :

infinite

Solution :

(i) MOSFET is ideal
(ii) Biased under saturation
(iii) Ideal common drain amplifier
Thus current gain (At) of ideal common drain amplifier
At = ∞

Hence, the correct option is (A).

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