Related Questions

While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is
A Short-circuited
B Open circuited
C Alright
D Leaky
If the input capacitor of a transistor amplifier is short-circuited, then
A Transistor will be destroyed
B Biasing conditions will change
C Signal will not reach the base
D None of the above
A class A power amplifier is sometimes called ___________ amplifier
A Symmetrical
B Single-ended
C Reciprocating
D Differential
The bandwidth of a single stage amplifier is ___________ that of a multistage amplifier
A More than
B The same as
C Less than
D Data insufficient
The purpose of a coupling capacitor in a transistor amplifier is to ___________
A Increase the output impedance of transistor
B Protect the transistor
C Pass a.c. and block d.c.
D Provide biasing
The purpose of emitter capacitor (i.e. capacitor across RE) is to ___________
A Avoid voltage gain drop
B Forward bias the emitter
C Reduce noise in the amplifier
D None of the above
The phase difference between the output and input voltages of a CE amplifier is ___________
A 180°
B 0°
C 90°
D 270°
The output power of a transistor amplifier is more than the input power because the additional power is supplied by ___________
A Transistor
B Biasing circuit
C Collector supply VCC
D None of the above
When voltage feedback (negative) is applied to an amplifier, its input impedance ___________
A Is decreased
B Is increased
C Remains the same
D None of the above
When current feedback (negative) is applied to an amplifier, its input impedance ___________
A Is decreased
B Is increased
C Remains the same
D None of the above

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