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Pre assessment electronic circuits

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

A transistor has …………………

a)

one pn junction

b)

two pn junctions

c)

three pn junctions

d)

four pn junctions

2.

The number of depletion layers in a transistor is ………

a)

four

b)

three

c)

one

d)

two

3.

The base of a transistor is ………….. doped

a)

heavily

b)

moderately

c)

lightly

d)

none of the above

4.

The element that has the biggest size in a transistor is ………………

a)

collector

b)

base

c)

emitter

d)

collector-base junction

5.

wonder child of electronics

a)

diode

b)

transistor

c)

capacitor

d)

calculator

6.

In a Transistor ………………..

a)

IE = IC + IB

b)

IC = IE + IB

c)

IE = IC – IB

d)

IB = IC + IE

7.

One function of the transistor is to_____________?

a)

rectify

b)

amplify

c)

limit

d)

control

8.

What are the two types of bipolar junction transistors?

a)

npn and pnp

b)

pnn and nnp

c)

ppn and nnp

d)

pts and stp

9.

Which terminal was heavily dopped....?

a)

Emitter

b)

Base

c)

Collector

d)

None of the above

10.

In which region, the transistor operates as amplifier.....?

a)

Saturation Region

b)

Cut-off Region

c)

Active Region

d)

None of the above

11.

In a NPN Transistor, the current carriers are ………….

a)

Acceptor Ions

b)

Donor Ions

c)

Free Electrons

d)

Holes

12.

A transistor is a …………… operated device

a)

Voltage

b)

Both Voltage and Current

c)

Current

d)

None of the Above

13.

Transistors act like tiny "____________."

a)

Electron sources

b)

Switches

c)

Batteries

d)

Bees?

14.

What are the names of the terminals X, Y and Z?

a)

X = Base, Y = Collector, Z = Emitter

b)

X = Emitter, Y = Base, Z = Collector

c)

X = Collector, Y = Base, Z = Emitter

d)

X = Collector, Y = Emitter, Z = Base

15.

Who is the inventor of transistor BJT?

a)

William Shockley

b)

Michael Faraday

c)

Alessandro Volta

d)

Nikola Tesla