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PHYSICS

JAMB 2015 - Question 21

Physics 2015 JAMB Past Questions - Question 21: an electric device is rated 2000w 250v the correct fuse rating of the device is

Choose the correct answers from the options given.

an electric device is rated 2000w 250v the correct fuse rating of the device is

A: 8a

B: 9a

C: 12v

D: 2v

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Correct Answer

Explanation

To determine the correct fuse rating for the electric device, you can use the formula:

Fuse rating (in amperes) = Power rating (in watts) / Voltage rating (in volts)

In this case, the power rating is 2000 watts and the voltage rating is 250 volts. Plugging these values into the formula, we get:

Fuse rating = 2000 watts / 250 volts

Fuse rating = 8 amperes

Therefore, the correct fuse rating for the device would be 8 amperes.