Electrical Engineering MCQs

Page No. 21

In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of _____________________?


aRC + RL

✖


bRC || RL

✖


cRL

✖


dRC

✓


View Answer RC

When a transistor amplifier is operating, the current in any branch is _______________?


aSum of a.c. and d.c.

✓


bc. only

✖


cc. only

✖


ddifference of a.c. and d.c.

✖


View Answer Sum of a.c. and d.c.

The phase difference between the output and input voltages of a CE amplifier is _____________?


a180o

✓


b0o

✖


c90o

✖


d270o

✖


View Answer 180o

If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?


a 20 V

✖


b5 V

✖


c2 V

✖


d10 V

✓


View Answer 10 V

The input capacitor in an amplifier is the______________ capacitor?


aCoupling

✓


bBypass

✖


cLeakage

✖


dNone of the above

✖


View Answer Coupling

The slope of a.c. load line is ______________ that of d.c. load line?


athe same as

✖


bMore than

✓


cLess than

✖


dNone of the above

✖


View Answer More than

When an a.c. signal is applied to an amplifier, ,the operating point moves along_________________?


ac. load line

✖


b c. load line

✓


c both d.c. and a.c. load lines

✖


dnone of the above

✖


View Answer c. load line

A single stage transistor amplifier contains______________ and associated circuitry?


aTwo transistors

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bOne transistor

✓


cThree transistor

✖


dNone of the above

✖


View Answer One transistor

It is generally desired that a transistor should have_____________________ input impedance?


aLow

✖


bVery low

✖


c High

✓


dVery high

✖


View Answer High

In the zero signal conditions, a transistor sees _____________ load?


a a.c

✓


bb.c

✖


cboth d.c. and a.c.

✖


dnone of the above

✖


View Answer a.c

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