Factors influencing the heat developed when a current passes through a conductor.

Let 's calculate the heat developed when 3A current flows through an electric iron box designed to work under '230 V'.

Power of an electric heater working in 230 V is 1000W. Calculate the heat produced if the current passes for 5 minutes through the circuit .

Explain what is observed. Electric current Is passed through a colloidal sol.

When electric current is passed through a resis tance wire, it get heated up" What happens to the heat energy developed, if the current through the wire is doubled.