Electrical Engineering Mcqs

In voltage divider bias, operating point is 3 V, 2 mA. If VCC = 9 V, RC = 2.2 kO, what is the value of RE ?

(A) 2000 O
(B) 1400 O
(C) 800 O
(D) 1600 O

Submitted By :Ali Uppal

The disadvantage of voltage divider bias is that it has _________________?

(A) High stability factor
(B) Low base current
(C) Many resistors
(D) None of the above

Submitted By :Ali Uppal

For proper amplification by a transistor circuit, the operating point should be located at the_____________ of the d.c. load line?

(A) The end point
(B) Middle
(C) The maximum current point
(D) None of the above

Submitted By :Ali Uppal

Thermal runaway occurs when_________________?

(A) Collector is reverse biased
(B) Transistor is not biased
(C) Emitter is forward biased
(D) Junction capacitance is high

Submitted By :Ali Uppal

The operating point ________________ on the a.c. load line?

(A) Also line
(B) Does not lie
(C) May or may not lie
(D) Data insufficient

Submitted By :Ali Uppal

The base resistor method is generally used in ________________?

(A) Amplifier circuits
(B) Switching circuits
(C) Rectifier circuits
(D) None of the above

Submitted By :Ali Uppal

In a base resistor method, if the value of ß changes by 50, then collector current will change by a factor ___________________?

(A) 25
(B) 50
(C) 100
(D) 200

Submitted By :Ali Uppal

If the value of collector current IC increases, then the value of VCE ______________?

(A) Remains the same
(B) Decreases
(C) Increases
(D) None of the above

Submitted By :Ali Uppal

In a particular biasing circuit, the value of RE is about _________________?

(A) 10 kO
(B) 1 MO
(C) 100 kO
(D) 800 O

Submitted By :Ali Uppal

The value of VBE ___________________?

(A) Depends upon IC to moderate extent
(B) Is almost independent of IC
(C) Is strongly dependant on IC
(D) None of the above

Submitted By :Ali Uppal

Previous
First
....
314
315
316
317
318
....
344
Next