1. An electric heater working at 230V produces 1000J of energy in one second.
i. What is the power of the device/
ii. Calculate the resistance of the heating coil.
iii.Calculate the heat generated when it works for 5 minutes.
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When current flows through a conductor, heat energy is generated in the conductor. ... A higher resistance produces more heat. ... E = Pt = V2/R *t = (2402 *5*60)/500 = 34,560J
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