rise in the temperature is observed in a conductor by passing some current. When the current is doubled, then rise in temperature will be equal to
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Using conservation of energy
Supplied electric energy = absorbed heat energy
⇒ ⇒ 
⇒ ⇒ 
(T - change in temperature)
i.e. when i is doubled T will be four times i.e. 
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