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【简答题】
汽车电路的特点
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举一反三
【单选题】when we apply reverse bias to a P-N junction at less than the avalanche voltage, the junction
A.
does not conduct
B.
conducts intermittently
C.
conducts fairly well
D.
conducts very well
【单选题】When a p-n junction is reverse-biased, the depletion layer is ________ and the device acts as a near-perfect ________( ).
A.
narrowed; conductor
B.
narrowed; insulator
C.
widened; conductor
D.
widened; insulator
【单选题】Light-emitting diodes emit light when the p-n junction is ( ).
A.
forward-biased
B.
reverse-biased
C.
zero biased
D.
operating in the Zener region
【单选题】When we forward-bias a P-N junction ,it fails to conduct
A.
unless the junction has enough capacitance
B.
if the applied voltage is less than the forward breakover voltage
C.
if the applied voltage exceeds the avalanch voltage
D.
unless the voltage remains constant
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