Heating Effect of Electric Current
Heating Effect of Electric Current: Overview
This topic tells us that the heating effect of electric current involves the conversion of electrical energy into heat energy. The magnitude of current and resistance of a wire generate heat in the wire. This effect can be seen in electric bulbs.
Important Questions on Heating Effect of Electric Current
Why are copper and aluminium wires usually employed for electricity transmission?
Why are the conductors of electric heating devices, such as bread-toasters and electric irons, made of an alloy rather than a pure metal?
Why is the tungsten used almost exclusively for filament of electric lamps?
An electric iron of resistance takes a current of . Calculate the heat developed in .
Compute the heat generated while transferring of charge in one hour through a potential difference of .
Why does the cord of an electric heater not glow while the heating element does?
