If the resistance of a conductor is doubled then the heat produced is:

Correct option is B

Correct Answer: B. Two times

Explanation:

• When the resistance of a conductor is doubled, the heat produced becomes two times the original amount.
• According to the formula H=I²⋅R⋅t, if resistance R is increased and all other factors (such as current and time) remain constant, the heat production is directly proportional to the resistance.
• Doubling R results in a corresponding doubling of the heat H.

Information Booster:

•  Heat generated is directly proportional to resistance.
•  Doubling resistance doubles the heat produced if current and time remain unchanged.
•  This relationship highlights how higher resistance leads to increased thermal energy dissipation.