NSAA NSAA Physics - Electricity and Magnetism

Question 1

A resistor has a voltage of 12 V across it and a current of 3 A through it. What is its resistance?

Accepted Answer

4 Ω

Answer

2 Ω

Answer

3 Ω

Answer

36 Ω

Question 2

Three resistors of 2 Ω, 3 Ω, and 5 Ω are connected in series. What is the total resistance?

Accepted Answer

10 Ω

Answer

1 Ω

Answer

5 Ω

Answer

30 Ω

Question 3

Two resistors of 6 Ω and 3 Ω are connected in parallel. What is the combined resistance?

Accepted Answer

2 Ω

Answer

1 Ω

Answer

9 Ω

Answer

18 Ω

Question 4

A charge of 4 C passes through a wire in 2 seconds. What is the electric current?

Accepted Answer

2 A

Answer

0.5 A

Answer

1 A

Answer

8 A

Question 5

A 60 W bulb runs on a 120 V supply. What current does it draw?

Accepted Answer

0.5 A

Answer

0.25 A

Answer

2 A

Answer

7200 A

Question 6

What happens to the resistance of a metallic conductor as its temperature increases?

Accepted Answer

Increases

Answer

Decreases

Answer

Remains constant

Answer

Drops to zero