The H amount of thermal energy is developed by a resistor in 10 s when a current of 4 A is passed through it. If the current is increased to 16 A , the thermal energy developed by the resistor in 10 s

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The H amount of thermal energy is developed by a resistor in 10 s when a current of 4 A is passed through it. If the current is increased to 16 A , the thermal energy developed by the resistor in 10 s will be

TestHub · Accepted Answer

Heat energy developed in the resistor due to current is given by, H = i 2 Rt . Therefore ⇒ H ∝ i 2 (for t = constant) Now required ratio, H ′ H ​ = ( 16 4 ​ ) 2 ⇒ H ′ = 16 H

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