When a transistor is cut off _________________?
(A) Maximum voltage appears across transistor
(B) Maximum current flows
(C) Maximum voltage appears across load
(D) None of the above
If the zero signal dissipation of a transistor is 1W, then power rating of the transistor should be at least___________________?
(A) 5 W
(B) 33 W
(C) 75 W
(D) 1 W
The output stage of a multistage amplifier usually employs______________?
(A) Push-pull amplifier
(B) Preamplifier
(C) Class A power amplifier
(D) None of the above
The size of a power transistor is made considerably large to________________?
(A) Provide easy handling
(B) Dissipate heat
(C) Facilitate connections
(D) None of the above
The most costly coupling is _______________ coupling?
(A) RC
(B) Direct
(C) Impedance
(D) Transformer
A class A power amplifier uses _________________?
(A) Two transistors
(B) Three transistors
(C) One transistor
(D) None of the above
The output stage of a multistage amplifier is also called _________________-?
(A) Mixer stage
(B) Power stage
(C) Detector stage
(D) F stage
The maximum efficiency of resistance loaded class A power amplifier is _________________?
(A) 5%
(B) 50%
(C) 30%
(D) 25%
________________ coupling is generally employed in power amplifiers?
(A) Transformer
(B) RC
(C) direct
(D) Impedance