Question on: JAMB Physics - 2005
An electric device is rated 2000 W, 250 v. The correct fuse rating of the device is?
A
9 A
B
8 A
C
6 A
D
7 A
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Correct Option: B
For the device rated 2000 W, 250 V, implies that current I, flowing is given by the relation
Power = IV
I = (power)/v = (200)/250
= 8A.
∴ the most suitable fuse for the device is 8A
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