A current amplification of 2000 is a gain of_________________?
(A) 3 db
(B) 66 db
(C) 20 db
(D) 200 db
The value of emitter capacitor CE in a multistage amplifier is about____________?
(A) 1 µF
(B) 100 pF
(C) 0.01 µF
(D) 50 µF
If the power level of an amplifier reduces to half, the db gain will fall by___________?
(A) 5 db
(B) 2 db
(C) 10 db
(D) 3 db
In the initial stages of a multistage amplifier, we use______________?
(A) RC coupling
(B) Transformer coupling
(C) Direct coupling
(D) None of the above
A gain of 1,000,000 times in power is expressed by_____________?
(A) 30 db
(B) 60 db
(C) 120 db
(D) 600 db
If a three-stage amplifier has individual stage gains of 10 db, 5 db and 12 db, then total gain in db is____________?
(A) 600 db
(B) 24 db
(C) 14 db
(D) 27 db
Transformer coupling is generally employed when load resistance is______________?
(A) Large
(B) Very large
(C) Small
(D) None of the above
_____________coupling provides the maximum voltage gain?
(A) RC
(B) Transformer
(C) Direct
(D) Impedance
In RC coupling, the value of coupling capacitor is about_______________?
(A) 100 pF
(B) 0.1 µF
(C) 0.01 µF
(D) 10 µF