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JAMB Physics 2005 Question 21

Question 21

Electrical Energy and Power

An electric device is rated 2000 W, 250 V. The correct fuse rating of the device is

  1. A.8A.
  2. B.9A.
  3. C.7A.
  4. D.6A.
Show the answer and explanation

Answer: A (8A.)

Explanation

I = P/V = 2000 ÷ 250 = 8 A.