Q.1.
In burglar alarm which type of diode is used
Q.2.
A zener diode is a heavily doped pn junction which is always used in
Q.3.
The characteristics of p-type semiconductors is includes
Q.4.
Which among these is NOT a semiconductor
Q.5.
In optocoupler LED and ............ are enclosed in one package
Q.6.
Select the functions of a driver circuit in power electronics?
Q.7.
Selection of suitable power switches in any application depends on _____ and ______.
Q.8.
BJTs and IGBTs generate low on-state conduction power losses.
Q.9.
Heat sinks can be used to dissipate heat produced by the forward conduction power losses.
Q.10.
A semiconductor power device can conduct current when it is in forward-biased condition.
Q.11.
Choose controllable power switches in these following list:
Q.12.
The resistivity of a semiconductor lies between
Q.13.
A simple diode rectifier circuit can convert: I. AC voltage to DC voltage II. DC voltage to AC voltage III. Small AC voltage to a large AC voltage
Q.14.
Which of the following statements is NOT the diode application in electronic circuit?
Q.15.
When diode is operated in forward bias mode it offers very low resistance in the circuit
Q.16.
In zener diode construction to have tunneling current the metallurgical junction is very sharp and doping is high
Q.17.
In the reverse bias operation diode offers high resistance in the circuit
Q.18.
Let np and ne be the number density of holes and conduction electrons respectively in a semiconductor. Then,
Q.19.
Zener diode is always used in reverse bias
Q.20.
Is the element added to the type N semiconductors.