Physics, asked by 123sona, 1 year ago

how to solve this question

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Answers

Answered by Anonymous
1
R=resistivity l /a
R*A/resistivity=l
put all the values and u will get ur ans

HOPE IT HELPS YOU '_'
Answered by Light1729
1
When diameter is doubled, the area is quadrupled, so resistance is (1/4)th of original.
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Light1729: welcome
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