Question

How does the resistance of a wire change when its diameter is tripled?​

Answer 1

Answer:

It is affected because more the cross-section more is the resistance

Answer 2

Explanation:

YOU MUST KNOW THAT THE RESISTANCE OF A GIVEN CYLINDRICAL CONDUCTING WIRE IS INVERSELY PROPORTIONAL TO AREA OF CROSS SECTION .

IF DIAMETER IS TRIPLED , AREA GETS MULTIPLIED BY 9 , HENCEFORTH , THE RESISTANCE DROPS BY 1/9 TIMES OF INITIAL RESISTANCE .

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