Question

How does the heat produced in a wire or a conductor depend upon the

Resistance of the conductor?

Answer 1

1. Heat is produced due to a current flowing in a conductor (generally of high resistance).
2. The heat generated due to current I in the circuit along with a potential difference V is$H=I^{2}Rt$, where t is the time for which the current flows.
3. As we can see in the formula, the heat produced is directly proportional to the resistance of the conductor in the circuit.
4. More the resistance, the more heat generated accordingly.
5. E.g- A bulb of low resistance produces low heat as compared to a heater having high resistance coil.