Physics, asked by vivekyadav76, 9 months ago

A piece of wire of resistance 20 ohm is drawn out so that its length is increased to twice
Calculate the resistance of the wire in the new situation

Answers

Answered by vanshgaur789

6

Explanation:

resistance =20 ohm

resistance = pl/a

now length twice

corresponding area gets half

so resistance = p(2L)/(1/2)a

r=4(pl/a)

r=4×20

r=80ohm

PLZ MARK IT BRAINLIEST ANSWER AND FOLLOW ME

Answered by krishangour680

1

Explanation:

mark vansh gaur answer as brainliest answer

it is correct

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