Q. Assertion (A): Linear ICs include audio amplifier, wideband amplifier, RF amplifier and IF amplifier

Reason (R): The error voltage in a feedback circuit is very small

View solution

Q. Assertion (A): The horizontal intercept of dc load line is the same as ideal cut off point

Reason (R): When a transistor is in cut off region, collector current is zero

View solution

Q. In a full wave diode rectifier circuit each diode carries current for

View solution

Q. When a JFET is cut off, it's like an __________ switch and when it is saturated, it's like a __________ switch.

View solution

Q. The mobility of e- for Ge and Si respectively is

View solution

Q. If a capacitor C is charged by a constant current I, then the rate of change of voltage with time given by sweep speed equal to

View solution

Q. In operational Amplifier, Common mode voltage gain should be

View solution

Q. Which of the following are linear ICs?

View solution

Q. The more negative gate voltage, the conductive channel becomes

View solution

Q. Which circuit has its output signal from, the emitter?

View solution

Q. A JFET is a

View solution

Q. When the ac input signal is very large the instantaneous operating point CE amplifier moves all the way between

View solution

Q. For full wave rectification four diode bridge rectifier is claimed to have following advantages:

1. Less expensive transformer
2. Small size transformer
3. Suitable for higher voltage applications

Which of these are correct?

View solution

Q. Which class of amplifiers operates with least distortion?

View solution

Q. Which configuration has high input impedance and low output impedance?

View solution

Q. Assertion (A): An ac amplifier uses coupling capacitors at input and output

Reason (R): The capacitive reactance varies inversely with frequency. It is infinite for dc

View solution

Q. Common base configuration is little used because

View solution

Q. If the plate supply voltage for a plate modulated class C amplifier is E volts, the maximum plate-cathode voltage could be almost as high as

View solution

Q. The changes in ambient temperature affect the open loop gain of amplifier.

View solution

Q. In a JFET, the lower end is called the __________ and the upper end is called the __________ .

View solution