Electrical Engineering MCQs

Page No. 133

The d.c. resistance of a crystal diode is ______________ its a.c. resistance?


a the same as


b more than


cless than


dnone of the above


View Answer less than

The forward voltage drop across a silicon diode is about _______________?


a2.5 V


b3 V


c10 V


d0.7 V


View Answer 0.7 V

A crystal diode has______________?


aone pn junction


b two pn junctions


cthree pn junctions


d none of the above


View Answer one pn junction

If the doping level in a crystal diode is increased, the width of depletion layer_____________?


aremains the same


bis decreased


c in increased


dnone of the above


View Answer in increased

A crystal diode is a ________________device?


a non-linear


bbilateral


c linear


dnone of the above


View Answer non-linear

When the graph between current through and voltage across a device is a straight line, the device is referred to as _______________?


alinear


bactive


cnonlinear


dpassive


View Answer linear

The PIV rating of a crystal diode is _______________ that of equivalent vacuum diode


athe same as


b lower than


cmore than


dnone of the above


View Answer lower than

The leakage current in a crystal diode is due to _________________?


aminority carriers


bmajority carriers


c junction capacitance


dnone of the above


View Answer minority carriers

The reverse current in a diode is of the order of _____________?


akA


bmA


cμA


dA


View Answer μA

The base of a transistor is____________doped?


aheavily


bmoderately


clightly


d none of the above


View Answer lightly

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