Q.1
In the sale of diamonds the unit of weight is carat. One carat is equal to
Q.2
Fermi level is the amount of energy in which
Q.3
In monolithic ICs, all the components are fabricated by
Q.4
Forbidden energy gap in germanium at 0 K is about
Q.5
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.
Q.6
When diodes are connected in series to increase voltage rating the peak inverse voltage per junction
Q.7
The most commonly used semiconductor material is
Q.8
Permalloy is
Q.9
In a semiconductor diode, the barrier offers opposition to
Q.10
As compared to bipolar junction transistor, a FET
Q.11
Which one of the following is not a characteristic of a ferroelectric material?
Q.12
In which of these is reverse recovery time nearly zero?
Q.13
A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is
Q.14
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.
Q.15
The depletion layer width of Junction
Q.16
An intrinsic silicon sample has 1 million free electrons at room temperature. As the temperature is increased
Q.17
The amount of photoelectric emission current depends on
Q.18
The sensitivity of human eyes is maximum at
Q.19
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
Q.20
In a half wave rectifier, the load current flows
0 h : 0 m : 1 s