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Transistors – 2 – 5

71. In a transistor, ……..

(a) IC = IE + IB
(b) IB = IC + IE
(c) IE = IC −IB
(d) IE = IC + IB

ANSWER

EXPLANATION

72. The value of α of a transistor is ……..

(a) more than 1
(b) less than 1
(c) 1
(d) none of the above

ANSWER

EXPLANATION

73. IC = αIE + ………..

(a) IB
(b) ICEO
(c) ICBO
(d) βIB

ANSWER

EXPLANATION

74. The output impedance of a transistor is ……..

(a) high
(b) zero
(c) low
(d) very low

ANSWER

EXPLANATION

75. In a transistor, IC = 100 mA and IE = 100.5 mA. The value of β is ……..

(a) 100
(b) 50
(c) about 1
(d) 200

ANSWER

EXPLANATION

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