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digital basics

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

he MOSFET stands for


a)

Metal oxidized selenium FET

b)

Metal oxide surface FET

c)

Metal oxide semiconductor FET

d)

Metal of surface FET

2.

The enhancement MOSFET is



a)

Normally off MOSFET

b)

Useful as a very good constant voltage source

c)

Widely used because of easy in its fabrication

d)

Normally on MOSFET

3.

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


a)

.It is cheaper

b)

.It is faster

c)

.It has better drive capability

d)

It has better noise immunity

4.

The input gate current of a FET is

a)

A few micro-amperes

b)

.A few mili-amperes

c)

.A few amperes

d)

Negligible

5.

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

a)

Depletion Mode

b)

Enhancement Mode

c)

Depletion- Enhancement Mode

d)

None of the above

6.

MOSFET has greatest application in digital circuit due to


a)

.Low power consumption

b)

Less noise

c)

Small amount of space it takes on a chip

d)

All of the above

7.

The main types of field effect transistor are


a)

BJT and FET

b)

UJT and FET

c)

JFET and MOSFET

d)

None of the above

8.

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

a)

.Is nearly zero

b)

Depends on reverse saturation current

c)

Is between zero and supply voltage

d)

Is nearly supply voltage

9.

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?


a)

As a Volatge Controlled Resistor

b)

As a Voltage Dependent Resistor

c)

As a Voltage-Variable Resistor

d)

All of the above

10.

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


.

a)

.Low

b)

Very low

c)

Zero

d)

High