What is an energy gap? Space between two orbital shells None of these Energy band in which electrons can move freely Energy level at which an electron can exist TRUE ANSWER : ? YOUR ANSWER : ?
Which oscillators are easy to fabricate in a monolithic IC? Crystal oscillator. Relaxation oscillator. Wien bridge oscillator. Hartley oscillator. TRUE ANSWER : ? YOUR ANSWER : ?
For transistor action the base region must be very thin and lightly doped. the emitter should be heavily doped. all of these. Je must be forward biased and Jc should be reverse biased. TRUE ANSWER : ? YOUR ANSWER : ?
The softness factor for soft recovery and fast recovery diodes are respectively 1, 1. 1, 1, >1. TRUE ANSWER : ? YOUR ANSWER : ?
Feedback circuit in an oscillator can be accomplished by Any one or combinations of the above methods Resistive coupling between input and output Capacitive coupling between input and output Inductive coupling between input and output TRUE ANSWER : ? YOUR ANSWER : ?
A Schottky diode is a fast recovery diode. both a majority and a minority carrier diode. minority carrier device. majority carrier device. TRUE ANSWER : ? YOUR ANSWER : ?
Barrier potential at the temperature (25°C) is 0.7 V, its value at 125°C is 0.7 V. 0.5 V. 0.3 V. 0.9 V. TRUE ANSWER : ? YOUR ANSWER : ?
In a JFET, if the gate voltage Vgs is made more negative, then depletion region decreases. channel conductivity increases. channel electric current increases . channel conductivity decreases. TRUE ANSWER : ? YOUR ANSWER : ?
A small collector current with zero base current is caused by the leakage current of the collector diode. transistor. base diode. emitter diode. TRUE ANSWER : ? YOUR ANSWER : ?
The extremely high input impedance of a MOSFET is primarily due to the negative gate-source voltage. depletion of electric current carriers. absence of its channel. extremely small leakage electric current of its gate capacitor. TRUE ANSWER : ? YOUR ANSWER : ?