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Worksheets

Basic Electronics

Total questions: 20

Worksheet time: 7mins

Name
Class
Date
1.

These are devices that can be used for amplification, rectification, or change energy from one another.

a)

Passive devices

b)

Active devices

c)

Semiconductors

d)

Insulators

2.

Which of the following is not a passive component?

a)

Resistor

b)

Capacitor

c)

Inductor

d)

Transistor

3.

It is a subatomic particle with a mass equal to 9.1 x 10-31 kg

a)

Proton

b)

Electron

c)

Neutron

d)

Nucleus

4.

These are materials that easily conduct electric current.

a)

conductor

b)

semiconductor

c)

insulator

5.

How many valence electrons does the semiconductor have?

a)

0

b)

1 - 3

c)

4

d)

5 - 7

6.

It is the band of electron orbitals by which electrons have enough energy to move freely in the material.

a)

conduction band

b)

forbidden band

c)

valence band

d)

semiconductor band

7.

It is simply the outermost electron orbital of an atom of any specific material that electrons actually occupy.

a)

Conduction band

b)

Semiconductor band

c)

Valence band

d)

Forbidden band

8.

Another term for the forbidden band.

a)

band energy

b)

band gap

c)

energy gap

d)

hidden band

9.

These are semiconductors in its pure (elemental) form.

a)

intrinsic

b)

extrinsic

c)

p-type

d)

n-type

10.

It is the term used for the vacancy left by the electron in the valence band or the absence of an electron

a)

valence electron

b)

hole

c)

recombination

d)

Electron-Hole Pair

11.

It occurs when a conduction-band electron loses energy and falls back into a hole in the valence band.

a)

Electron-Hole Pair

b)

forbidden band

c)

recombination

d)

polarization

12.

It is the process of adding impurities to an intrinsic semiconductor.

a)

recombination

b)

doping

c)

conduction

d)

energy transfer

13.

Which of the following does not have three valence electrons?

a)

Aluminum

b)

Boron

c)

Galium

d)

Arsenic

14.

Which diode model describes that when the diode is forward-biased, it acts like a closed (on) switch and when the diode is reverse-biased, it acts like an open (off) switch.

a)

Ideal

b)

Practical

c)

Complex

d)

Bohr

15.

It is the term used to describe an external voltage applied to a PN junction.

a)

EMF

b)

supply

c)

bias

d)

forward voltage

16.

If the battery mentioned earlier is connected across the junction so that its voltage aids the junction, it will increase the junction barrier and thereby offer a ___ to the current flow through the junction.

a)

low resistance

b)

high resistance

c)

wide depletion layer

d)

narow depletion layer

17.

It is the boundary between two different types of semiconductive material.

a)

depletion layer

b)

forbidden layer

c)

PN junction

d)

energy gap

18.

The ____ of the diode is mathematically determined as the inverse of the slope of the transconductance curve.

a)

dynamic resistance

b)

quiescent point

c)

forward voltage

d)

saturation current

19.

What type of diode has the schematic symbol as shown below?

a)

Shockley Diodes

b)

Schottky Diodes

c)

photodiode

d)

LED

20.

What do you call to the equation described below?

a)

Schottky's equation

b)

Shockley's equation

c)

Boltzmann's equation

d)

Sterling's equation