BMST Electrical Circuits and Ohm's Law 2

Question 1

A circuit has a voltage of 24 V and a resistance of 8 Ω. What is the current?

Accepted Answer

3 A

Answer

2 A

Answer

4 A

Answer

6 A

Question 2

Two resistors of 6 Ω and 12 Ω are connected in parallel. What is the equivalent resistance?

Accepted Answer

4 Ω

Answer

18 Ω

Answer

9 Ω

Answer

2 Ω

Question 3

A resistor dissipates 50 W of power when 5 A flows through it. What is the resistance?

Accepted Answer

2 Ω

Answer

1 Ω

Answer

5 Ω

Answer

10 Ω

Question 4

Which component in a circuit is specifically designed to limit current flow?

Accepted Answer

Resistor

Answer

Capacitor

Answer

Inductor

Answer

Diode

Question 5

If voltage across a resistor doubles while resistance stays the same, what happens to power dissipated?

Accepted Answer

It quadruples

Answer

It doubles

Answer

It halves

Answer

It stays the same

Question 6

In a series circuit with three resistors of 3 Ω, 5 Ω, and 7 Ω, what is the total resistance?

Accepted Answer

15 Ω

Answer

5 Ω

Answer

10 Ω

Answer

21 Ω

Question 7

A 9 V battery powers a circuit with 3 Ω total resistance. How much power is consumed?

Accepted Answer

27 W

Answer

3 W

Answer

9 W

Answer

81 W