Q. At room temperature kT = 0.03 eV.

View solution

Q. Assertion (A): A JFET behaves as a resistor when VGS < VP.

Reason (R): When VGS < VP, the drain current in a JFET is almost constant.

View solution

Q. In a reverse biased P-N junction, the current through the junction increases abruptly at

View solution

Q. As comparated to an ordinary p-n diode, the extent of impurity atoms in a tunnel diode

View solution

Q. In active filter circuits, inductances are avoided mainly because they

View solution

Q. When a p-n-p transistor is operating in active region, the current in the n region is due to

View solution

Q. In a JFET

View solution

Q. Fermi level in intrinsic semiconductor is at the centre of forbidden energy band.

View solution

Q. In a photo transistor the photocurrent is

View solution

Q. In photoelectric emission the maximum kinetic energy of emitted electron is proportional to

View solution

Q. Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resulting electric field inside the speciment will be in

View solution

Q. In a p-n-p transistor operating in forward active mode

View solution

Q. Consider the following statements.

1. Etching
2. Exposure to UV radiation
3. Stripping
4. Developing

After a wafer has been coated with photo resist the correct sequence of these steps in photolithography is

View solution

Q. If both the emitter base and the collector base junctions of a bipolar transistor are forward biased, the transistor is in the

View solution

Q. In a triode the potential of grid (with respect to cathode) is usually

View solution

Q. A varactor diode is

View solution

Q. The output v-i characteristics of enhancement type MOSFET has

View solution

Q. In a full wave rectifier, the current in each of the diodes flows for

View solution

Q. In an ideal junction transistor the impurity concentration in emitter (E ), base (B) and collector (C) is such that

View solution

Q. The rating of a transformer to deliver 100 watts of D.C. power to a load under half wave rectifier will be nearly

View solution