An electric heater has a resistance of 50 Omega... - WAEC Physics 2013 Question
An electric heater has a resistance of 50(\Omega). When it is immersed in water and connected to 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
Ask EduPadi AI...
Correct Option: D
Q = I2RT
= 42 x 50 x 2 x 60
= 96000J
Please share this, thanks:
#WAEC #WAEC
Add your answer
No responses