Q. Pick the Odd one out

View solution

Q. An op-amp is fed from a signal source through resistance R1. If it is to work as sign changer, the feedback resistance Rf should be

View solution

Q. A multivibrator can be used as a

View solution

Q. A multivibrator generates

View solution

Q. The derating factor, for ambient temperature higher than specified, for a transistor is about

View solution

Q. Efficiency of a half wave diode rectifier is less than 40%.

View solution

Q. Generally op amp is used in

View solution

Q. The equivalent circuit of an op-amp has

View solution

Q. In a transistor with normal bias

View solution

Q. A transistor has

1. collector
2. emitter
3. base

In a N-P-N transistor the electron flow into the transistor at

View solution

Q. A three terminal monolithic IC regulator can be used as

View solution

Q. Which of the following is not the main characteristic of a FET?

View solution

Q. The basic amplifier in Weinbridge oscillator consists of

View solution

Q. To obtain very high I/P and O/P impedances in a feedback amplifier, the topology used is

View solution

Q. The gate-source voltage that reduces the drain current to approximately zero is called

View solution

Q. In a half wave voltage doubler circuit the input frequency is 50 Hz. The ripple frequency is

View solution

Q. Class A amplifiers are preferred when

View solution

Q. The ac input voltage of an amplifier

View solution

Q. Assertion (A): Negative feedback reduces the gain of an amplifier

Reason (R): Negative feedback is very commonly used in amplifier circuits

View solution

Q. The emitter resistor RE in the emitter of CE amplifier stabilizes the dc operating point against variation in

View solution