A wire has resistance of 4 ohm? what will be the new resistance of the wire if it's sad to be 4 times of its length?
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it may help u .....
thanks ..
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kunal20049:
I am also getting this answer but the correct answer is 64 ohm
ok
let me try it again
okk
now look
but why you write cube of 4
its formula
as much increase
its will be to the power
Answered by
0
16 times of the initial
As R is directly proportional to l2
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