190. In the depletion region of a pn junction, there is a shortage of
A. acceptor ions
B. holes and electrons
C. donor ions
D. none of the above
191. A reverse biased pn junction has
A. very narrow depletion layer
B. almost no current
C. very low resistance
D. large current flow
192. A pn junction acts as a
A. controlled switch
B. bidirectional switch
C. unidirectional switch
D. none of the above
193. A reverse biased pn junction has resistance of the
A. order of
B. order of Ica
C. order of MU
D. none of the above
194. The leakage current across a pn junction is due to
A. minority carriers
B. majority carriers
C. junction capacitance
D. none of the above
195. When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on
A. junction capacitance
B. minority carriers
C. majority carriers
D. none of the above
196. With forward bias to a pn junction, the width of depletion layer
A. decreases
B. increases
C. remains the same
D. none of the above
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