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Ohms Law Quiz Level 2 & 3

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.

What potential is produced across a resistance of 15Ω if a current of 12A is flowing through it?

a)

180V

b)

150V

c)

200V

d)

120V

2.

A current of 15A flows through a resistor and a voltage of 200V is measured across it. Calculate the value of the resistor.

a)

13.33Ω

b)

15Ω

c)

10Ω

d)

20Ω

3.

When a current of 4.7A is flowing through a resistor, a voltage of 250V is measured across the resistor. Calculate the value of the resistor.

a)

53.19Ω

b)

47.5Ω

c)

55Ω

d)

60Ω

4.

What is the current flowing in a circuit when a voltage of 212V is present across a resistance of 4.7Ω?

a)

45.11A

b)

50A

c)

40A

d)

55A

5.

A voltage of 24V is measured across a resistor of 450Ω. Calculate the current flowing in the circuit.

a)

0.053A

b)

0.067A

c)

0.045A

d)

0.060A

6.

A cable of resistance of 0.057Ω carries a current of 149.27A. What will be the voltage drop in the cable?

a)

8.51V

b)

7.52V

c)

6.78V

d)

5.67V

7.

A cable has a resistance of 2.7Ω. What is the maximum current it can carry if the voltage drop is not to exceed 11.5V?

a)

4.26A

b)

3.89A

c)

5.12A

d)

4.25A

8.

Calculate the resistance of a resistor if a current of 3.5A flows through it and a voltage of 105V is measured across it.

a)

30Ω

b)

35Ω

c)

25Ω

d)

40Ω

9.

If a voltage of 330V is applied across a resistor and a current of 11A is measured, what is the resistance of the resistor?

a)

30Ω

b)

25Ω

c)

35Ω

d)

40Ω

10.

A resistor has a resistance of 220Ω. What is the current flowing through it when a voltage of 44V is applied?

a)

0.2A

b)

0.15A

c)

0.25A

d)

0.3A

11.

A resistor has a resistance of 75Ω. What is the voltage across it if a current of 2A is flowing through it?

a)

150V

b)

160V

c)

140V

d)

130V

12.

Calculate the current flowing through a resistor of 60Ω when a voltage of 180V is applied across it.

a)

3A

b)

2.5A

c)

4A

d)

3.5A

13.

If a current of 8A flows through a resistor and the voltage drop across it is 64V, what is the resistance of the resistor?

a)

b)

c)

d)

10Ω

14.

What is the resistance of a resistor if a current of 5A flows through it and the voltage drop across it is 45V?

a)

b)

c)

10Ω

d)

15.

A resistor has a resistance of 100Ω. What is the voltage across it if a current of 0.5A is flowing through it?

a)

50V

b)

45V

c)

55V

d)

60V

16.

Calculate the current flowing through a resistor of 30Ω when a voltage of 90V is applied across it.

a)

3A

b)

2A

c)

4A

d)

5A

17.

What is the resistance of a resistor if a current of 10A flows through it and the voltage drop across it is 100V?

a)

10Ω

b)

c)

11Ω

d)

12Ω

18.

A resistor has a resistance of 50Ω. What is the voltage across it if a current of 3A is flowing through it?

a)

150V

b)

140V

c)

160V

d)

170V

19.

Calculate the current flowing through a resistor of 20Ω when a voltage of 80V is applied across it.

a)

4A

b)

3A

c)

5A

d)

6A