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TLA 4.2 FET Familiarization

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

On the drain characteristic curve of a JFET for VGS = 0, the pinch-off voltage is

a)

below the ohmic area.

b)

between the ohmic area and the constant current area.

c)

between the constant current area and the breakdown region.

d)

above the breakdown region.

2.

For a JFET, the value of VDS at which ID becomes essentially constant is the

a)

pinch-off voltage.

b)

cutoff voltage.

c)

breakdown voltage.

d)

ohmic voltage.

3.

The value of VGS that makes ID approximately zero is the

a)

pinch-off voltage.

b)

cutoff voltage.

c)

breakdown voltage.

d)

ohmic voltage.

4.

For a JFET, the change in drain current for a given change in gate-to-source voltage, with the drain-to-source voltage constant, is

a)

breakdown.

b)

reverse transconductance.

c)

forward transconductance.

d)

self-biasing.

5.

High input resistance for a JFET is due to

a)

a metal oxide layer.

b)

a large input resistor to the device.

c)

an intrinsic layer.

d)

the gate-source junction being reverse-biased.

6.

A dual-gated MOSFET is

a)

a depletion MOSFET.

b)

an enhancement MOSFET.

c)

a VMOSFET.

d)

either a depletion or an enhancement MOSFET.

7.

Which of the following devices has the highest input resistance?

a)

diode

b)

JFET

c)

MOSFET

d)

bipolar junction transistor

8.

Identify the p-channel E-MOSFET.

a)

a

b)

b

c)

c

d)

d

9.

Identify the n-channel D-MOSFET.

a)

a

b)

b

c)

c

d)

d

10.

Identify the n-channel E-MOSFET

a)

a

b)

b

c)

c

d)

d