Physics, asked by suchithra33, 9 months ago

a wire of length l and area of cross section a was drawn into a wirl of double of its length by melting it. If it's original resistivity and resistance were rho and r . What will be the new resistivity and resistance?

Answers

Answered by akhileswarta

Answer:

When a wire is double its length wold become double and are of cross section would be halved. i.e. Where R1 is the new resistance. Therefore the new resistance of the wire is 4R and resistivity remains unchanged.Aug 25, 2018

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a wire of length l and area of cross section a was drawn into a wirl of double of its length by melting it. If it's original resistivity and resistance were rho and r . What will be the new resistivity and resistance? ​

Answers

a wire of length l and area of cross section a was drawn into a wirl of double of its length by melting it. If it's original resistivity and resistance were rho and r . What will be the new resistivity and resistance?