# Transistors – 3 – 4

116. The current gain β of a transistor is defined as –

(a) IE/IB
(b) IE/IC
(c) IC/IE
(d) IC/IB

EXPLANATION
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117. For P-N-P transistor the value of α in common base is 0.98. the value of current gain β in common emitter is –

(a) 4.9
(b) 49
(c) 0.49
(d) 0.98

EXPLANATION
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118. The term transistor stand for –

(a) Transfer of resistance
(b) Transfer of power
(c) Transfer of voltage
(d) Transfer of current

EXPLANATION
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119. The correct relationship between transistor parameter α and β is –

(a) α = β/(β – 1)
(b) α = (β + 1)/β
(c) β = α /(1 – α)
(d) β = (α + 1)/α

EXPLANATION
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120. The current gain α of a transistor is defined as –

(a) IC/IB
(b) IE/IC
(c) IC/IE
(d) IB/IE

EXPLANATION
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