Physics, asked by michealmickey79651, 5 months ago

A wire of resistance 5 ohm is drawn so that its length is increased by twice its lenght.calculate its new resistance

Answers

Answered by farro786

0

Answer:

new resistance = n^2R

bcz by increasing length area decreases

R=resistivity ×length/area

R=resistivity 2l/A/2

R=4R

so the answer will be 25 ohm

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