An electric heater has a resistance of 50Ω. When it is immersed in water and connected to the mains source, it draws a current of 4.0A. Calculate the heat gained by the water if the heater is switched on for 2 minutes, assuming no heat losses to the surroundings

A. 400J
B. 1600J
C. 24000J
D. 96000J

Correct Answer: Option D

D. 96000J

Explanation

Q = I²RT

= 4² x 50 x 2 x 60

= 96000J

Health Team Original price was: ₦1,000.00.Current price is: ₦300.00.
Factors Affecting Health in Nigeria Original price was: ₦1,000.00.Current price is: ₦300.00.
Primary Health Care Principles Original price was: ₦1,000.00.Current price is: ₦300.00.
Nigeria Healthcare Tiers Original price was: ₦1,000.00.Current price is: ₦300.00.
Primary Health Care - Health According To WHO - Referral System Original price was: ₦1,000.00.Current price is: ₦300.00.

Earn Your Degree In 3 Years Without Writing UTME. Click Here To Learn More.