Q. The advantage of FET over BJT is

View solution

Q. The MOSFET is almost ideal as a switching device because

View solution

Q. The input and output signals for CE amplifier are always

View solution

Q. In a one pole active low pass filter, the cut off frequency is fc. Then

View solution

Q. Turn off time of a transistor switch is equal to (where ts is storage time and tf is fall time.)

View solution

Q. In a CE amplifier circuit the emitter by pass capacitor is remove. The ac output voltage

View solution

Q. In a differential amplifier, CMRR can be improved by using an increased

View solution

Q. If ac resistance of diode is re, then In CE, BJT amplifier the input impedance is

View solution

Q. The voltage gains of an amplifier without feedback and with negative feedback respectively are 100 and 20. The percentage of negative feedback (β) would be

View solution

Q. Three cascaded stages have gains of 10, 20 and 25. The overall gain will be

View solution

Q. Find the odd one out

View solution

Q. If the value of C₂ and C₃ are doubled, the oscillation frequency will be

View solution

Q. Which of the following statement about JFET is correct?

View solution

Q. Assertion (A): In Darlington pair, the overall β is product of individual βs

Reason (R): The voltage gain of a base driven amplifier is equal to ac collector voltage divided by ac base voltage

View solution

Q. A Wien bridge oscillator uses Wien bridge for

View solution

Q. A cascade amplifier will have higher cut off frequency

View solution

Q. A Darlington circuit is obtained by connecting

View solution

Q. A CE amplifier has a high input signal. In the wave shape of emitter current

View solution

Q. An inverting voltage feedback is a

View solution

Q. If a transistor is operating with both of its Junctions forward biased, but with the collector base forward biased, but with the collector base forward bias greater than the emitter-base forward bias, then it is operating in the

View solution