If too large current passes through the diode Excessive heat may damage the diode All electrons will leave All holes will freeze Diode will emit light TRUE ANSWER : ? YOUR ANSWER : ?
The sensitivity of human eyes is maximum at Green portion of spectrum Red portion of spectrum Violet portion of spectrum White portion of spectrum TRUE ANSWER : ? YOUR ANSWER : ?
The amount of photoelectric emission current depends on Frequency of incident radiation None of these Both frequency and intensity of incident radiation Intensity of incident radiation TRUE ANSWER : ? YOUR ANSWER : ?
Assertion (A): A JFET can be used as a current source.Reason (R): In beyond pinch off region the current in JFET is nearly constant. 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 : ?
The output, V-I characteristics of an Enhancement type MOSFET has Only an ohmic region An ohmic region at large voltage values preceded by a saturation region at lower voltages Only a saturation region An ohmic region at low voltage value followed by a saturation region at higher voltages TRUE ANSWER : ? YOUR ANSWER : ?
The forbidden energy gap between the valence band and conduction band will be least in case of All of these Insulators Metals Semiconductors TRUE ANSWER : ? YOUR ANSWER : ?
When avalanche breakdown occurs covalent bonds are not affected. False True TRUE ANSWER : ? YOUR ANSWER : ?
An electron in the conduction band Has higher energy than the electron in the valence band Jumps to the top of the crystal Loses its charge easily Has lower energy than the electron in the valence band 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 A is false but R is true 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 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 : ?