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Transistors – 2 – 3

61. In a pnp transistor, the current carriers are ……..

(a) acceptor ions
(b) donor ions
(c) free electrons
(d) holes

ANSWER

EXPLANATION

62. The collector of a transistor is …….. doped.

(a) heavily
(b) moderately
(c) lightly
(d) none of the above

ANSWER

EXPLANATION

63. A transistor is a ……… operated device.

(a) current
(b) voltage
(c) both voltage and current
(d) none of the above

ANSWER

EXPLANATION

64. In an NPN transistor, ………. are the minority carriers.

(a) free electrons
(b) holes
(c) donor ions
(d) acceptor ions

ANSWER

EXPLANATION

65. The emitter of a transistor is …….. doped.

(a) lightly
(b) heavily
(c) moderately
(d) none of the above

ANSWER

EXPLANATION

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