Transistors – 3 – 3

111. The ‘ emitter electron of transistor in P-type semiconductor if the make is –

(a) PNP
(b) NPN
(c) NNP
(d) PPN

ANSWER

EXPLANATION

112. The correct relationship between emitter current (IE) base current (IB)and collector current (IC) for a transistor ?

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

ANSWER

EXPLANATION

113. The current gain (β) may have a value :

(a) 0.5 – 1
(b) 20 – 500
(c) 0.1- 0.5
(d) 10^3 – 10^6

ANSWER

EXPLANATION

114. In N-P-N transistor P layer acts as –

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

ANSWER

EXPLANATION

115. The ‘base’ of PNP transistor is –

(a) N-type
(b) P-type
(c) Both type
(d) None type

ANSWER

EXPLANATION

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