Physics WAEC

Water of mass 1.5kg is heated from 30°C to 80°C using an electric kettle which is rated 5A, 230V. Calculate the time taken to reach the final destination [specific heat capacity of water 4200Jkg-1K-1]

A. 4.57 minutes
B. 5.02 minutes
C. 7.30 minutes
D. 10.04 minutes

Correct Answer: Option A

A. 4.57 minutes

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