Electrical Engineering Mcqs — Test 110
Page 1 of 3
Question 1
The push-pull circuit must use ______________ operation?
Question 2
The class B push-pull circuit can deliver 100 W of a.c. output power. What should be the minimum power rating of each transistor ?
Question 3
The maximum a.c. power output from a class A power amplifier is 10 W. What should be the minimum power rating of the transistor used ?
Question 4
For the same a.c. power output as above, what should be the minimum power rating of transistor for class B operation?
Question 5
The most important consideration in power amplifier is __________________?
Question 6
Power amplifiers generally use transformer coupling because transformer permits______________?
Question 7
Transformer coupling can be used in______________amplifiers?
Question 8
A transformer coupled class A power amplifier has a load of 100 O on the secondary. If the turn ratio is 10:1, what is the value of load appearing on the primary?
Question 9
The most costly coupling is _______________ coupling?
Question 10
The disadvantage of impedance matching is that it _______________?