Question

What must be the current rating of the fuse for the safe use of an electric heater rated 1188 W, 120 V?

• A. 10 A
• B. 9.5 A
• C. 8.5 A
• D. 9.2 A

Answer 1

The correct option is

A

9.5 A

Given:

P = 1188 W

V = 120 V

I = $\frac{P}{V}$

I = $\frac{1188W}{120V}$

I = 9.9 A

So, the fuse of current rating 9.5 A can be used for the safe usage of the electric heater.