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An equipment whose power is 1500W and resistance is 375 ohms would draw a current...

Physics
JAMB 1991
An equipment whose power is 1500W and resistance is 375 ohms would draw a current of
  • A. 0.10A
  • B. 2.00A
  • C. 4.00A
  • D. 77.5A
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Correct Answer: Option B
Explanation
P = I2R \(\Rightarrow\) I = \(\sqrt\frac{P}{R}\)

I = \(\sqrt\frac{1500}{375}\)

= 2A
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