JFET

A JFET has three terminals, namely …………

• 1. cathode, anode, grid

• 1. emitter, base, collector

• 1. source, gate, drain

• 1. none of the above

A JFET is also called …………… transistor

• 1. unipolar

• 1. bipolar

• 1. unijunction

• 1. none of the above

A JFET is a ………… driven device

• 1. current

• 1. voltage

• 1. both current and voltage

• 1. none of the above

The gate of a JFET is ………… biased

• 1. reverse

• 1. forward

• 1. reverse as well as forward

• 1. none of the above

If the reverse bias on the gate of a JFET is increased, then width of the conducting channel …………..

• 1. is decreased

• 1. is increased

• 1. remains the same

• 1. none of the above

A common base configuration of a pnp transistor is analogous to ………… of a JFET

• 1. common drain configuration

• 1. common source configuration

• 1. common gate configuration

• 1. none of the above

In a JFET, I_DSS is known as …………..

• 1. drain to source current

• 1. drain to source current with gate shorted

• 1. drain to source current with gate open

• 1. none of the above

At cut-off, the JFET channel is ……….

• 1. at its widest point

• 1. completely closed by the depletion region

• 1. extremely narrow

• 1. reverse baised

In a JFET, when drain voltage is equal to pinch-off voltage, the depletion layers ………

• 1. almost touch each other

• 1. have large gap

• 1. have moderate gap

• 1. none of the above

A MOSFET can be operated with ……………..

• 1. negative gate voltage only

• 1. positive gate voltage only

• 1. positive as well as negative gate voltage

• 1. none of the above