Question

An electric heater works on 230 volt Ac has resistance of 1000 ohm. calculate the amount of heat energy generated in one hour​

Answer 1

Answer:

the and = 678 volt

Explanation:

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Answer 2

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 =  $\frac{V^2}{R}$

and heat generated by the appliance , H  = power of appliance × time

∴ $H=\frac{V^2}{R}t$

here, V = 230 volts , R = 1000 Ω and t = one hour = 3600 sec

⇒ H = $\frac{230^2}{1000}\times3600J$ = 190440 J ≈  190.4 kJ

therefore the amount of heat energy generated in one hour is 190.4 kJ