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Electronics Engineering Objective Questions { Bipolar Junction Transistor }



183. is the region of a transistor which has highest conductivity.
A. Base
B. Emitter
C. Collector
D. Any of the above
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184. Bipolar transistor is a
A. three terminal semiconductor device
B. three layer semiconductor device
C. three junction semiconductor device
D. none of the above
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185. Silicon controlled rectifier belongs to
A. diode family
B. triode family
C. thyristor family
D. none of the above
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186. Current flow through a bipolar transistor is by means of
A. electrons
B. holes
C. both electrons and holes
D. none of the above
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187. Transistor works as an open switch when emitter junction is biased and collector junction is biased
A. forward, reverse
B. reverse, reverse
C. reverse, forward
D. forward, forward
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188. Transistor works as a closed switch when emitter junction is biased and collector junction is biased.
A. forward, reverse
B. reverse, reverse
C. reverse, forward
D. forward, forward
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189. Transistor works as a variable rheostat when emitter junction is biased and collector junction is biased.
A. forward, reverse
B. reverse, reverse
C. reverse, forward
D. forward, forward
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