digital basics

he MOSFET stands for

• Metal oxidized selenium FET

• Metal oxide surface FET

• Metal oxide semiconductor FET

• Metal of surface FET

The enhancement MOSFET is

• Normally off MOSFET

• Useful as a very good constant voltage source

• Widely used because of easy in its fabrication

• Normally on MOSFET

In MOSFETs N-channel is more preferred than P-channel because

• .It is cheaper

• .It is faster

• .It has better drive capability

• It has better noise immunity

The input gate current of a FET is

• A few micro-amperes

• .A few mili-amperes

• .A few amperes

• Negligible

The operation of De-MOSFET under the application of positive gate is also known as ________.

• Depletion Mode

• Enhancement Mode

• Depletion- Enhancement Mode

• None of the above

MOSFET has greatest application in digital circuit due to

• .Low power consumption

• Less noise

• Small amount of space it takes on a chip

• All of the above

The main types of field effect transistor are

• BJT and FET

• UJT and FET

• JFET and MOSFET

• None of the above

When the transistor is in saturation, the collector to emitter voltage

• .Is nearly zero

• Depends on reverse saturation current

• Is between zero and supply voltage

• Is nearly supply voltage

How does the FET operate before the pinch-off region with small value of drain-to-source voltage in accordance to the control of drain-to-source resistance by the bias voltage?

• As a Volatge Controlled Resistor

• As a Voltage Dependent Resistor

• As a Voltage-Variable Resistor

• All of the above

In applications where ............ input resistance is needed, the JFET is preferred to the bipolar transistor

.

• .Low

• Very low

• Zero

• High