Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Ohm's Law

Total questions: 20

Worksheet time: 6mins

Name
Class
Date
1.

1. What is the resistance value (of a resistor) to produce a 3 Amp current flow with a 12 Volt battery?

a)

1 Ohm

b)

2 Ohm

c)

4 Ohm

d)

12 Ohm

2.

What is current measured in?

a)

Ω (Ohms)

b)

V (Volts)

c)

A (Amps)

d)

W (Watts)

3.

What is voltage measured in?

a)

Ω (Ohms)

b)

A (Amps)

c)

V (Volts)

d)

W (Watts)

4.

What is Resistance?

a)

The flow of electrons

b)

Electric potential difference

c)

A battery

d)

The ability to reduce the flow of electrons

5.

Electricity that flows in a closed path is called a

a)

path

b)

circuit

c)

light

d)

current

6.

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

a)

25 V

b)

2.5 V

c)

10 V

d)

0.4 V

7.

The mathematical relationship among Voltage, Current, and Resistance

a)

Faraday's Law

b)

Edison's Law

c)

Ohm's Law

d)

Tesla's Law

8.

Current times Resistance equals

(I X R)

a)

Amperage

b)

Power

c)

Voltage

d)

Ohm

9.

If the Voltage is increased and the resistance stays the same, Current will

a)

Increase

b)

Stay the same

c)

Decrease

d)

Not sure

10.

If the Voltage stays the same and Resistance is increased, Current will

a)

Increase

b)

Stay the same

c)

Decrease

d)

Not sure

11.

How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor

a)

12 volts

b)

1.3333 volts

c)

48 volts

d)

24 volts

12.

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

a)

3 Amps

b)

2 Amps

c)

192 Amps

d)

4 Amps

13.

What word means how hard it is for electrons to flow through.

a)

Current

b)

Voltage

c)

Resistance

d)

Power

14.

To complete a circuit the switch must be

a)

unattached

b)

open

c)

It depends

d)

closed

15.

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

a)

1 Ohm

b)

4 Ohms

c)

3 Ohms

d)

12 Ohms

16.

What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts

a)

15 Ohms

b)

4 Ohms

c)

0.3333 Ohms

d)

2 Ohms

17.

What is the formula for ohms law?

a)

E= MC squared

b)

πr2

c)

F=MA

d)

V=IR

18.

The 'flow' of voltage around a circuit is referred to as:

a)

Past

b)

Future

c)

Current

d)

History

19.

A battery provides...

a)

Voltage

b)

Current

c)

Ampere

d)

Resistance

20.

Current is a measure of...

a)

Dried grapes

b)

Power

c)

Amperes

d)

Flow