Question : According to _____ law, the heat produced by an electric current is directly proportional to the resistance of the conductor, the square of the current and the time it flows.
Option 1: Hooke's
Option 2: Charles's
Option 3: Faraday's
Option 4: Joule's
Correct Answer: Joule's
Solution : The correct option is Joule's .
According to Joule's Law, the heat produced by an electric current (I) flowing through a conductor is directly proportional to the resistance of the conductor (R), the square of the current (I²), and the time (t) for which the current flows. Mathematically, Joule's Law is expressed as:
H = I 2 . R . t
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