Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface. True False TRUE ANSWER : ? YOUR ANSWER : ?
In a semiconductor diode, the barrier offers opposition to Majority carriers in both regions Majority as well as minority carriers in both regions Free electrons in N-region only Holes in P-region only TRUE ANSWER : ? YOUR ANSWER : ?
For a P-N diode, the number of minority carriers crossing the junction depends on None of these Forward bias voltage Potential barrier Rate of thermal generation of electron hole pairs TRUE ANSWER : ? YOUR ANSWER : ?
If too large current passes through the diode All holes will freeze All electrons will leave Diode will emit light Excessive heat may damage the diode TRUE ANSWER : ? YOUR ANSWER : ?
When avalanche breakdown occurs covalent bonds are not affected. True False TRUE ANSWER : ? YOUR ANSWER : ?
For a NPN bipolar transistor, what is the main stream of current in the base region? Drift of holes Drift of electrons Diffusion of electrons Diffusion of holes TRUE ANSWER : ? YOUR ANSWER : ?
Forbidden energy gap in germanium at 0 K is about 0.78 eV 2 eV 10 eV 5 eV TRUE ANSWER : ? YOUR ANSWER : ?
Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is In the direction of current Antiparallel to magnetic field In arbitrary direction Normal to both current and magnetic field TRUE ANSWER : ? YOUR ANSWER : ?
At room temperature the current in an intrinsic semiconductor is due to Electrons Ions Holes Holes and electrons TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following could be the maximum current rating of junction diode by 126? 20 A 10 A 1 A 100 A TRUE ANSWER : ? YOUR ANSWER : ?