Question

power of an electric heater working in 230V is 1000W calculate the heat produced if the current pass for 5 minutes through the circuit​

Answer 1

Explanation:

HEY MATE HERE IS YOUR ANSWER

(i) Electric current flowing through heater=I=4A∴(ii) Resistance of heated wire R= IV = 4250 =62.5Ω∴(iii) Thermal energy produced per minute by heater=E T =P×1min=1000×60sec=60000J∴(iv) Electrical energy spent in kilowatt-hour by heater in 2 hours= 1000P KW×2hour=2KW-hour

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