Electrical Engineering Mcqs

Operating point represents__________________?

(A) Values of IC and VCE when signal is applied
(B) The magnitude of signal
(C) Zero signal values of IC and VCE
(D) None of the above

Submitted By :Ali Uppal

For proper operation of the transistor, its collector should have___________________?

(A) Proper forward bias
(B) Proper reverse bias
(C) Very small size
(D) None of the above

Submitted By :Ali Uppal

If biasing is not done in an amplifier circuit, it results in________________?

(A) Decrease in the base current
(B) Unfaithful amplification
(C) Excessive collector bias
(D) None of the above

Submitted By :Ali Uppal

At absolute temperature, an intrinsic semiconductor has________________?

(A) A few free electrons
(B) Many holes
(C) Many free electrons
(D) No holes or free electrons

Submitted By :Ali Uppal

A reverse biased pn junction has resistance of the order of________________?

(A) O
(B) kO
(C) MO
(D) None of the above

Submitted By :Ali Uppal

The operating point is also called the _______________?

(A) Cut off point
(B) Quiescent point
(C) Saturation point
(D) None of the above

Submitted By :Ali Uppal

For good stabilsation in voltage divider bias, the current I1 flowing through R1 and R2 should be equal to or greater than_____________?

(A) 10 IB
(B) 3 IB
(C) 2 IB
(D) 4 IB

Submitted By :Ali Uppal

The disadvantage of base resistor method of transistor biasing is that it_________________?

(A) Is complicated
(B) Is sensitive to changes in ß
(C) Provides high stability
(D) None of the above

Submitted By :Ali Uppal

An ideal value of stability factor is________________?

(A) 100
(B) 200
(C) More than 200
(D) 1

Submitted By :Ali Uppal

The leakage current in a silicon transistor is about_____________ the leakage current in a germanium transistor?

(A) One hundredth
(B) One tenth
(C) One thousandth
(D) One millionth

Submitted By :Ali Uppal

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