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Basic Electrical Concepts Quiz

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

A type of subatomic particle with a positive charge is a(n) ____.

a)

proton

b)

neutron

c)

electron

d)

quark

2.

An electrical circuit contains, at minimum, ____.

a)

voltage source, load, and conductors

b)

voltage source, load, and overcurrent device

c)

ammeter, load, and voltage source

d)

resistor, conductors, and load

3.

Another term used for voltage is ____.

a)

current

b)

emf

c)

joule

d)

coulomb

4.

Which of the following substances is considered an insulator?

a)

Copper

b)

Porcelain

c)

Silver

d)

Gold

5.

Joules are ____.

a)

the difference between voltage and current

b)

the potential difference between two points

c)

the rate of current flow

d)

a unit of energy

6.

Which subatomic particle has no charge?

a)

proton

b)

electron

c)

neutron

d)

nucleus

7.

What is the charge of an electron?

a)

positive

b)

negative

c)

neutral

d)

variable

8.

Which component is necessary for current to flow in a circuit?

a)

resistor

b)

voltage source

c)

insulator

d)

fuse

9.

Which of the following is a conductor?

a)

Porcelain

b)

Copper

c)

Glass

d)

Rubber

10.

What does emf stand for?

a)

Electromagnetic field

b)

Electromotive force

c)

Electric motor function

d)

Electron mass factor

11.

Which unit is used to measure electric charge?

a)

joule

b)

volt

c)

coulomb

d)

ampere

12.

Which device measures current in a circuit?

a)

voltmeter

b)

ammeter

c)

resistor

d)

transformer

13.

Which of the following is NOT a part of a basic electrical circuit?

a)

load

b)

voltage source

c)

insulator

d)

conductor

14.

Which material is commonly used as a conductor in electrical circuits?

a)

rubber

b)

copper

c)

porcelain

d)

glass

15.

Which of the following is NOT an insulator?

a)

porcelain

b)

glass

c)

copper

d)

rubber

16.

Which device protects a circuit from overcurrent?

a)

fuse

b)

ammeter

c)

voltmeter

d)

resistor

17.

Which of the following is a property of insulators?

a)

allow current to flow easily

b)

prevent current flow

c)

increase voltage

d)

decrease resistance

18.

Which term describes the force that moves electrons in a circuit?

a)

resistance

b)

emf

c)

joule

d)

ampere

19.

Which of the following is a good example of an insulator?

a)

copper wire

b)

porcelain plate

c)

silver rod

d)

gold bar

20.

Which of the following is NOT a subatomic particle?

a)

proton

b)

electron

c)

nucleus

d)

neutron

21.

Which of the following is used to measure voltage?

a)

ammeter

b)

voltmeter

c)

resistor

d)

fuse

22.

Which of the following is a property of conductors?

a)

high resistance

b)

low resistance

c)

prevent current flow

d)

store energy

23.

Which of the following is necessary for a closed circuit?

a)

open switch

b)

continuous path

c)

insulator

d)

fuse

24.

Current is measured in units called ____

a)

amperes

b)

watts

c)

volts

d)

joules

25.

In a parallel circuit, the total resistance is ____

a)

proportional to the smallest resistance

b)

less than the smallest resistance

c)

greater than the smallest resistance

d)

equal to the smallest resistance

26.

Resistance is measured in ____

a)

volts

b)

milliamperes

c)

ohms

d)

amps

27.

An ammeter is used to measure ____

a)

power

b)

current

c)

resistance

d)

voltage

28.

The power in a 120V circuit with a current of 5A is ____

a)

600W

b)

120W

c)

5W

d)

240W

29.

The opposition to current flow is known as ____

a)

power

b)

voltage

c)

emf

d)

resistance

30.

The voltage commonly supplied to a residence by the local utility is ____

a)

480V/600V

b)

120V/240V

c)

360V/480V

d)

208V/230V