Current flows through a conductor connected across a voltage source. Now the resistance of the conductor is reduced to one fourth to its initial value and connected across the same voltage source. The heating effect in the conductor will become

Half

Double

Four times

One fourth

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Current flows through a conductor connected across a voltage source. Now the resistance of the conductor is reduced to one fourth to its initial value and connected across the same voltage source. The heating effect in the conductor will become

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Text solutionVerified

Heating effect is the wattage of the conductor. So, H=V2R If resistance is reduced to four times then H′=V2(R/4)or H′=4[V2R] ∴H′=4H

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Question Text	Current flows through a conductor connected across a voltage source. Now the resistance of the conductor is reduced to one fourth to its initial value and connected across the same voltage source. The heating effect in the conductor will become
Answer Type	Text solution:1
Upvotes	150

Current flows through a conductor connected across a voltage source. Now the resistance of the conductor is reduced to one fourth to its initial value and connected across the same voltage source. The heating effect in the conductor will become

Text solutionVerified

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