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

Correct Answer: B. 2.00A

Explanation

P = I2R \(\Rightarrow\) I = \(\sqrt\frac{P}{R}\)

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

= 2A



Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *
Add Math
Don't want to keep filling in name and email whenever you make a contribution? Register or login to make contributing easier.