Which of the following could be the maximum current rating of junction diode by 126? 100 A 20 A 10 A 1 A TRUE ANSWER : ? YOUR ANSWER : ?
In a semiconductor diode, the barrier offers opposition to Majority carriers in both regions Holes in P-region only Free electrons in N-region only Majority as well as minority carriers in both regions 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. A is false but R is true A is true but R is false 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 : ?
The depletion layer width of Junction Decreases with light doping Is independent of applied voltage Increases with heavy doping Is increased under reverse bias TRUE ANSWER : ? YOUR ANSWER : ?
Power diodes are generally None of these Either of the above Germanium diodes Silicon diodes TRUE ANSWER : ? YOUR ANSWER : ?
Assertion (A): A VMOS can handle much larger current than other field effect transistors.Reason (R): In a VMOS the conducting channel is very narrow. A is false but R is true Both A and R are true and R is correct explanation of A A is true but R is false Both A and R are true but R is not a correct explanation of A 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 arbitrary direction Normal to both current and magnetic field Antiparallel to magnetic field In the direction of current TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has highest resistivity? Air Mica Paraffin wax Mineral oil TRUE ANSWER : ? YOUR ANSWER : ?
For a NPN bipolar transistor, what is the main stream of current in the base region? Diffusion of holes Drift of electrons Diffusion of electrons Drift of holes TRUE ANSWER : ? YOUR ANSWER : ?
If too large current passes through the diode All electrons will leave Diode will emit light Excessive heat may damage the diode All holes will freeze TRUE ANSWER : ? YOUR ANSWER : ?