Physics, asked by mehak1508, 1 year ago

a wire of length 2m and area of crossection 10cm^2 has a resistance of 10 ohm... what would be the resistance of another wire of same material having length halved and area of crossection doubled.... plzz answer it fast... no spamming plzzz

Answers

Answered by catmat1710
4
pls vote brainliest if the answer is useful

we have the formula for resistance 
r=P(rho)l/a
so P(rho) does not change the value of P(rho)
so resistance only depends on length/area
so your answer would be
r=L/4A
so the answer will be 1/4th times the original resistance


catmat1710: pls vote brainliest
catmat1710: please vote brainliest
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