Electrical Engineering Mcqs

If the arrow of crystal diode symbol is positive w.r.t. bar, then diode is _____________biased?

(A) forward

(B) reverse

(C) either forward or reverse

(D) none of the above

Submitted By: Ali Uppal


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

(A) the same as

(B) more than

(C) less than

(D) none of the above

Submitted By: Ali Uppal


Submitted By: Ali Uppal


A crystal diode has______________?

(A) one pn junction

(B) two pn junctions

(C) three pn junctions

(D) none of the above

Submitted By: Ali Uppal


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

(A) remains the same

(B) is decreased

(C) in increased

(D) none of the above

Submitted By: Ali Uppal


A crystal diode is a ________________device?

(A) non-linear

(B) bilateral

(C) linear

(D) none of the above

Submitted By: Ali Uppal


BC 147 transistor indicates that it is made of____________?

(A) germanium

(B) silicon

(C) carbon

(D) none of the above

Submitted By: Ali Uppal


As the temperature of a transistor goes up, the base-emitter resistance___________?

(A) decreases

(B) increases

(C) remains the same

(D) none of the above

Submitted By: Ali Uppal


The most commonly used transistor arrangement is____________arrangement?

(A) common emitter

(B) common base

(C) common collector

(D) none of the above

Submitted By: Ali Uppal


A crystal diode utilises …………….. characteristic for rectification

(A) reverse

(B) forward

(C) forward or reverse

(D) none of the above

Submitted By: Ali Uppal