Transistors – 3 – 2

106. A transistor is basically an amplifying device for :

(a) Current
(b) Voltage
(c) Power
(d) None of the above

107. Which of the following could have a maximum width ?

(a) Base
(b) Emitter
(c) Collector
(d) None of these

108. Current gain in common base configuration is less than unity because –

(a) IC< IE
(b) IC> IE
(c) IB < IE
(d) IB > IE

109. The value of α –

(a) Is always less than 1
(b) Is always greater than 1
(c) May be less or greater than 1
(d) None of these

110. A transistor is essentially :

(a) Power driven device
(b) Current operated device
(c) Voltage operated device
(d) None of these

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