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Ohm’s Law in Parallel Circuits - HW

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Three resistors (R1 = 6Ω, R2 = 3Ω, R3 = 2Ω) are connected in parallel. What is the total resistance?

a)

b)

c)

d)

11Ω

2.

In a parallel circuit, the voltage is 12V and the resistor is 4Ω. What is the current through the resistor?

a)

3A

b)

6A

c)

0.5A

d)

48A

3.

Q3. Two resistors (R1 = 10Ω, R2 = 5Ω) are in parallel. What is the total resistance?

a)
3.33Ω
b)

15Ω

c)

0.3Ω

d)

50Ω

4.

If the voltage across a parallel branch is 24V and R = 8Ω, what is the current?

a)

3A

b)

6A

c)

2A

d)

0.33A

5.

Q5. A 120V supply is connected across two parallel resistors: 30Ω and 60Ω. What is the total current?

(a)  

6.

Q6. A parallel circuit has 3 branches, each with 6A of current. What is the total current?

a)

18A

b)

6A

c)

12A

d)

3A

7.

Find the total resistance in the following diagram:

a)

8.3Ω

b)

c)

3.8Ω

d)

5.5Ω

8.

A 9V battery is connected across a 3Ω resistor in parallel. What is the current?

a)

3A

b)

6A

c)

0.33A

d)

27A

9.

If R1 = 2Ω and R2 = 3Ω are in parallel, what's the total resistance?

a)

1.2Ω

b)

2.5Ω

c)

d)

0.6Ω

10.

A current of 4A flows through a 12Ω resistor in parallel. What is the voltage?

a)

48V

b)

24V

c)

12V

d)

4V

11.

A 10Ω and a 20Ω resistor are connected in parallel with a 5V supply. What is the total current in the circuit?

a)

0.75A

b)

0.25A

c)

1.5A

d)

0.5A

12.

If total current is 2A and voltage is 10V, what's the equivalent resistance?

a)

b)

c)

20Ω

d)

0.2Ω

13.

In a parallel circuit, the voltage across each 15Ω resistor is 30V. What is the current through one?

a)

2A

b)

0.5A

c)

4A

d)

1A

14.

Find the total resistance in the following diagram:

a)

7.9Ω

b)

14.4Ω

c)

1.7Ω

d)

2.9Ω

15.

Voltage = 18V, R = 9Ω in one branch. What is the current?

a)

2A

b)

1A

c)

0.5A

d)

4A