Transistors – 2 – 9

91. IC=α/(1-α)IB+………./(1-α)

(a) ICBO
(b) ICEO
(c) IC
(d) IE

ANSWER

EXPLANATION

92. BC 147 transistor indicates that it is made of ……..

(a) germanium
(b) silicon
(c) carbon
(d) none of the above

ANSWER

EXPLANATION

93. ICEO = (……..) ICBO

(a) β
(b) 1 + α
(c) 1 + β
(d) none of the above

ANSWER

EXPLANATION

94. A transistor is connected in CB mode. If it is now connected in CE mode with same bias voltages, the values of IE, IB and IC will ………….

(a) remain the same
(b) increase
(c) decrease
(d) none of the above

ANSWER

EXPLANATION

95. If the value of α is 0.9, then value of β is …………

(a) 9
(b) 0.9
(c) 900
(d) 90

ANSWER

EXPLANATION

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