Question

The quantity of heat produced by a current in a conductor is directly proportional to ..... in the conductor.

• A. The time of current flow.
• B. The square of magnitude of current.
• C. The resistance.
• D. All the above.

Answer 1

Answer: (D)

All the above.

Using the relation $H=i^2\ast r\ast t$ , We can tell that heat produced depend on the current flowing , resistance and for the time being current is flowing.