Physics, asked by rajithagurrala123, 9 months ago

A WIRE OF RESISTANCE R HAVING A LENGTH L AND AREA OF CROSS SECTION A . WHAT IS THE RESISTANCE OF ANOTHER WIRE OF SAME MATERIAL HAVING A LENGTH 2L AND AREA OF CROSS SECTION 4A?

Answers

Answered by Atαrαh

2

R is directly proportional to length and inversely proportional to area

R=rho l/A

R1=rho 2l/4A

R1=R/2

I hope this helps

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