For a P-N diode, the number of minority carriers crossing the junction depends on Rate of thermal generation of electron hole pairs None of these Potential barrier Forward bias voltage TRUE ANSWER : ? YOUR ANSWER : ?
The forbidden energy gap between the valence band and conduction band will be least in case of Insulators Semiconductors Metals All of these TRUE ANSWER : ? YOUR ANSWER : ?
How many free electrons does a p type semiconductor has? Only those produced by thermal energy Only those produced by doping Any of the above Those produced by doping as well as thermal energy TRUE ANSWER : ? YOUR ANSWER : ?
In a half wave rectifier, the load current flows For less than fourth cycle Only for the positive half cycle of the input signal Only for the negative half cycle of the input signal For full cycle TRUE ANSWER : ? YOUR ANSWER : ?
Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface. False True TRUE ANSWER : ? YOUR ANSWER : ?
Permalloy is A variety of stainless steel A polymer A nickel an iron alloy having high permeability A conon-ferrous alloy used in aircraft industry TRUE ANSWER : ? YOUR ANSWER : ?
Piezoelectric quartz crystal resonators find application where Modulation of signal is required Rectification of the signal is required Signal frequency control is required Signal amplification is required TRUE ANSWER : ? YOUR ANSWER : ?
Power diodes are generally None of these Silicon diodes Germanium diodes Either of the above TRUE ANSWER : ? YOUR ANSWER : ?
Assertion (A): A p-n junction has high resistance in reverse direction.Reason (R): When a reverse bias is applied to p-n junction, the width of depletion layer increases. A is true but R is false Both A and R are true and R is correct explanation of A A is false but R is true Both A and R are true but R is not a correct explanation of A TRUE ANSWER : ? YOUR ANSWER : ?
Assertion (A): In p-n-p transistor collector current is termed negative.Reason (R): In p-n-p transistor holes are majority carriers. Both A and R are true and R is correct explanation of A Both A and R are true but R is not a correct explanation of A A is false but R is true A is true but R is false TRUE ANSWER : ? YOUR ANSWER : ?