FET – 52

52. A JFET has high input impedance because …….

(a) it is made of semiconductor material
(b) input is reverse biased
(c) of impurity atoms
(d) none of the above

Answer

Answer : (b)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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FET » Exercise - 260. In class A operation, the input circuit of a JFET is ............. biased. (a) forward (b) reverse (c) not (d) none of the above
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FET - 43
FET » Exercise - 143. The input impedance of a JFET is ....... that of an ordinary transistor. (a) equal to (b) less than (c) more than (d) none of the above
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FET - 28
FET » Exercise - 128. Which of the following exhibits very high input impedance ? (a) Diode (b) P-N-P (c) N-P-N (d) FET
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FET » Exercise - 262. The pinch-off voltage of a JFET is about ....... (a) 5 V (b) 0.6 V (c) 15 V (d) 25 V
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Amplifiers - 35
Amplifiers » Exercise - 135. An emitter follower has ..... input impedance. (a) zero (b) low (c) high (d) none of the above
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