How many free electrons does a p type semiconductor has? Any of the above Those produced by doping as well as thermal energy Only those produced by doping Only those produced by thermal energy TRUE ANSWER : ? YOUR ANSWER : ?
Forbidden energy gap in germanium at 0 K is about 10 eV 5 eV 2 eV 0.78 eV 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 : ?
When avalanche breakdown occurs covalent bonds are not affected. False True TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has highest resistivity? Mineral oil Mica Paraffin wax Air TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following is not a characteristic of a ferroelectric material? No hysteresis Electric dipole moment High dielectric constant Ferroelectric characteristic only above the curie point TRUE ANSWER : ? YOUR ANSWER : ?
A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is 0.99 99 100 1.01 TRUE ANSWER : ? YOUR ANSWER : ?
In which of these is reverse recovery time nearly zero? Tunnel diode PIN diode Zener diode Schottky diode TRUE ANSWER : ? YOUR ANSWER : ?
Silicon is not suitable for fabrication of light emitting diodes because it is Narrowband gap semiconductor Wideband gap semiconductor Direct band gap semiconductor An indirect band gap semiconductor TRUE ANSWER : ? YOUR ANSWER : ?
In a semiconductor diode, the barrier offers opposition to Majority carriers in both regions Free electrons in N-region only Majority as well as minority carriers in both regions Holes in P-region only TRUE ANSWER : ? YOUR ANSWER : ?