An electric heater works on 230 volt Ac has resistance of 1000 ohm. calculate the amount of heat energy generated in one hour
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Answer:
the and = 678 volt
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Given info : An electric heater works on 230 volts AC has resistance of 1000 ohm.
To find : the amount of heat energy generated in one hour is given by,
solution : we know, power of an electric appliance of potential difference V and resistance of that appliance is R , is given by , P =
and heat generated by the appliance , H = power of appliance × time
∴
here, V = 230 volts , R = 1000 Ω and t = one hour = 3600 sec
⇒ H = = 190440 J ≈ 190.4 kJ
therefore the amount of heat energy generated in one hour is 190.4 kJ
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