Q. The theoretical maximum efficiency of a half wave diode rectifier is

View solution

Q. Which of the following statement is correct?

View solution

Q. In a transistor push pull amplifier

View solution

Q. In a self bias circuit for CE amplifier, the base voltage is

View solution

Q. A push pull amplifier is a

View solution

Q. An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. How much feedback should be used to provide the desired level?

View solution

Q. Which of the following oscillator circuits uses three capacitors in the phase shifting network?

View solution

Q. Consider the following rectifier circuits :

1. half-wave rectifier without filter
2. full-wave rectifier without filter
3. full-wave rectifier with series inductance filter
4. full-wave rectifier with capacitance filter.

The sequence of these rectifier circuits in decreasing order of their ripple factor is

View solution

Q. When a transistor is to be at a temperature above 25°C

View solution

Q. Assertion (A): In monolithic IC the components are part of one chip

Reason (R): An op-amp is a high gain dc amplifier

View solution

Q. The most widely used LC oscillator is

View solution

Q. Which of the following statement is wrong?

View solution

Q. The disadvantage of FET over BJT is

View solution

Q. V MOS have the advantage of

View solution

Q. For an op-amp source follower circuit

View solution

Q. In CE approximation, the upper end of d.c. load line is called the __________ point and the lower end is the __________ point.

View solution

Q. In a class C power amplifier

View solution

Q. A low noise device is most important

View solution

Q. To draw dc equivalent circuit for a CE amplifier circuit we should

View solution

Q. The maximum efficiency of class A amplifier is

View solution