An electric heater of 2ohms resistance uses a current of 15Ampere to heat the water from 20°C to 90°C in 15seconds,calculate electric power of the heater and mass of the water.
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we know that
power =I^2×RT then we have current=15A
Resistance=2ohm
Time=15s
power=15×15×2×15
=6750W
Answered by
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Answer:
6750 W
Explanation:power =(I^2)RT
HERE I=15A
R=2ohm
T=15s
Power=15×15×2×15
=6750W
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