MOSFET – 1 – 3

11. A MOSFET can be operated with …….

(a) negative gate voltage only
(b) positive gate voltage only
(c) positive as well as negative gate voltage
(d) none of the above

ANSWER

EXPLANATION

12. Which of the following devices has the highest input impedance ?

(a) JFET
(b) MOSFET
(c) crystal diode
(d) ordinary transistor

ANSWER

EXPLANATION

13. A MOSFET uses the electric field of a ……. to control the channel current.

(a) capacitor
(b) battery
(c) generator
(d) none of the above

ANSWER

EXPLANATION

14. The input impedance of a MOSFET is of the order of …………..

(a) Ω
(b) a few hundred Ω
(c) k Ω
(d) several M Ω

ANSWER

EXPLANATION

15. A MOSFET differs from a JFET mainly because ……………

(a) of power rating
(b) the MOSFET has two gates
(c) the JFET has a pn junction
(d) none of above

ANSWER

EXPLANATION

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