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WorksheetsOhms Law
Total questions: 20
Worksheet time: 10mins
A bulb draws 0.5 amperes from a 120-volt supply. What is the resistance of the bulb?
200 Ω
240 Ω
250 Ω
300 Ω
A bulb draws 0.6 amperes from a 150-volt supply. What is the resistance of the bulb?
100 Ω
125 Ω
150 Ω
250 Ω
A bulb draws 0.4 amperes from a 90-volt supply. What is the resistance of the bulb?
225 Ω
250 Ω
300 Ω
360 Ω
A bulb draws 0.7 amperes from a 140-volt supply. What is the resistance of the bulb?
171 Ω
200 Ω
220 Ω
250 Ω
A current of 2 amperes is flowing through a resistor of 15 ohms. What is the voltage across the resistor?
(a)
A current of 3 amperes is flowing through a resistor of 20 ohms. What is the voltage across the resistor?
45 V
50 V
55 V
60 V
A current of 1.5 amperes is flowing through a resistor of 10 ohms. What is the voltage across the resistor?
10 V
15 V
20 V
25 V
A current of 2.5 amperes is flowing through a resistor of 25 ohms. What is the voltage across the resistor?
45 V
50 V
55 V
62.5 V
A device using 18 watts of power is connected to a 9-volt battery. What is the current drawn by the device and what is the resistance of the device?
2 A, 4.5 Ω
3 A, 3 Ω
4 A, 2.25 Ω
A device using 24 watts of power is connected to a 12-volt battery. What is the current drawn by the device and what is the resistance of the device?
2 A, 6 Ω
3 A, 5 Ω
4 A, 4 Ω
6 A, 7 Ω
A device using 24 watts of power is connected to a 6-volt battery. What is the current drawn by the device and what is the resistance of the device?
2 A, 1 Ω
3 A, 2 Ω
4 A, 1.5 Ω
6 A, 2.5 Ω
A device using 36 watts of power is connected to a 6-volt battery. What is the current drawn by the device and what is the resistance of the device?
2 A, 1 Ω
3 A, 2 Ω
4 A, 2 Ω
6 A, 1 Ω
A 6.0 V battery delivers 1.2 A current to an electric motor. How much power is delivered to the motor?
7.2 W
8.4 W
9.6 W
10.8 W
A 7.5 V battery delivers 1.5 A current to an electric motor. How much power is delivered to the motor?
9 W
10.5 W
11.25 W
13.5 W
A 4.0 V battery delivers 0.8 A current to an electric motor. How much power is delivered to the motor?
3.2 W
3.6 W
4.0 W
4.4 W
A 8.0 V battery delivers 1.6 A current to an electric motor. How much power is delivered to the motor?
12.8 W
14.4 W
16.0 W
17.6 W
What potential difference is required to pass 1.5 A of current through a 2.0 Ω resistor?
3 V
4 V
5 V
6 V
What potential difference is required to pass 2.0 A of current through a 3.0 Ω resistor?
4 V
6 V
2 V
5 V
What potential difference is required to pass 2.5 A of current through a 4.0 Ω resistor?
7 V
8 V
9 V
10 V
What potential difference is required to pass 1.0 A of current through a 1.0 Ω resistor?
1 V
2 V
3 V
4 V
