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Worksheets

Ohm's Law

Total questions: 19

Worksheet time: 19mins

Name
Class
Date
1.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
2.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
3.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
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.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
6.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
7.
If the Voltage stays the same and Resistance is increased, Current will 
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
8.

In the model, what do the arrows represent?

a)

The flow of current

b)

The flow of resistance

c)

The flow of voltage

d)

The flow of positrons

9.

Based on the model, which of the following would be true regarding the relationship between voltage, current, and resistance? (LT3/DOK2)

a)

Current will reduce voltage.

b)

Current will not get through resistance.

c)

Resistance will reduce current.

d)

Voltage will reduce resistance.

10.

Based on the graph, which of the following would be true regarding the relationship of voltage and current?

a)

As voltage increases, current decreases.

b)

Voltage will not affect current.

c)

As voltage decreases, current increases.

d)

As voltage increases, current also increases.

11.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current has more than one path to flow through
12.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
13.
How do you calculate current
a)
Resistance X Voltage
b)
Voltage X Resistance
c)
Resistance ÷ Voltage
d)
Voltage ÷ Resistance
14.
With the engine running the charging system produces 14.5 Volts what would the current flow be if a resistance of 6 Ohms was present
a)
2.41 Ohms
b)
2.52 Ohms
c)
2.1 Ohms
d)
0.3333 Ohms
15.

A 3-V battery sends a current of 0.10 A through a light bulb. What is the resistance of the filament of the bulb?

a)

.033 Ω

b)

30 Ω

c)

.3 Ω

d)

300 Ω

16.

Which of the following would be a measurement of Current?

a)

27 V

b)

32 Ω

c)

7 A

d)

1.5 W

17.

Which of the following would be a measurement of Resistance?

a)

3 Ω

b)

1.7 V

c)

23 A

d)

67 W

18.

Which of the following is the correct formula for Calculating Current?

a)

 I = VRI\ =\ \frac{V}{R}  

b)

 R = V x IR\ =\ V\ x\ I  

c)

 I=RVI=\frac{R}{V}  

d)

 V= I x RV=\ I\ x\ R  

19.

Which of the following is Ohm's Law?

a)

Current is proportional to Voltage and inversely proportional to resistance.

b)

Current is proportional to Resistance and inversely proportional to Voltage

c)

Resistance, Current and Voltage are proportional to each other.