BJT Amplifiers and Oscillators MCQs

Question 1

If Rc and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c. load is .........

Accepted Answer

RCJIRL

Answer

+ Etc

Answer

? Re

Answer

12c

Question 2

In a single stage transistor amplifier, Rc and RL represent collector resistance

Accepted Answer

difference of a.c. and d.c.

Answer

sum of a.c. and d.c.

Answer

a.c. only

Answer

d.c. only

Question 3

The purpose of d.c. conditions in a transistor is to

Accepted Answer

set up operating point

Answer

revrse bias the emitter

Answer

forward bias the collector

Answer

none of the above

Question 4

An amplifier has a power gain of 100. Its db gain is

Accepted Answer

(b) 20 db

Answer

10 db

Answer

40 db

Answer

none of the above

Question 5

The ratio of output to input impedance of a CE amplifier is

Accepted Answer

moderate

Answer

about 1

Answer

low

Answer

high

Question 6

The d.c. load of a transistor amplifier is generally that of a.c. load.

Accepted Answer

more than

Answer

the same as

Answer

less than

Answer

none of the above

Question 7

A single stage transistor amplifier with collector load Rc and emitter resistance RE has a d.c. load of

Accepted Answer

Rc + RE

Answer

Rc

Answer

Rc 11 RE

Answer

1Rc ? RE

Question 8

A single stage transistor amplifier with no load seed an a.c. load of

Accepted Answer

Rc

Answer

Rc + RE

Answer

Rc II RE

Answer

Rc / RE

Question 9

A transistor converts

Accepted Answer

d.c. power into a.c. power

Answer

a.c. power into d.c. power

Answer

high resistance into low resistance

Answer

none of the above