Explore topic-wise MCQs in Electronics.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics knowledge and support exam preparation. Choose a topic below to get started.

1.

One advantage of voltage-divider bias is that the dependency of drain current, I, on the range of Q points is _________.

A. reduced
B. increased
C. not affected
D. none of the above
Answer» B. increased
2.

A __________ change in V will produce a __________ change in I.

A. small, large
B. large, small
C. large, large
D. small, small
Answer» C. large, large
3.

The gate-biased JFET characteristic curve includes I.

A. True
B. False
Answer» C.
4.

In a voltage-divider JFET circuit, I is a maximum when V = 0 V.

A. True
B. False
Answer» B. False
5.

The amount of gate voltage needed to turn the JFET completely off is called V.

A. True
B. False
Answer» B. False
6.

Using voltage-divider biasing, what is the voltage at the gate V?

A. 5.2 V
B. 4.2 V
C. 3.2 V
D. 2.2 V
Answer» B. 4.2 V
7.

What is the transconductance of an FET when I = 1 mA and V = 1 V?

A. 1 kS
B. 1 mS
C. 1 k
D. 1 m
Answer» C. 1 k
8.

When testing an n-channel D-MOSFET, resistance G to D = , resistance G to S = , resistance D to SS = and 500 , depending on the polarity of the ohmmeter, and resistance D to S = 500 . What is wrong?

A. short D to S
B. open G to D
C. open D to SS
D. nothing
Answer» E.
9.

When V = 0 V, a JFET is:

A. saturated
B. an analog device
C. an open switch
D. cut off
Answer» B. an analog device
10.

With a 30-volt V, and an 8-kilohm drain resistor, what is the E-MOSFET Q point voltage, with I = 3 mA?

A. 6 V
B. 10 V
C. 24 V
D. 30 V
Answer» B. 10 V