Asked by Rose

1) a wire of length 1m has a resistance of 2 ohm.obtain the resistance if specific resistance is double,diameter is double and the length is made three times of the first.
Answered by Damon
specific r double ---> double r
diameter doubles --> resistance 1/4
lenght * 3 ----> r *3
2/4*3 = 3/2
3/2 * 2 ohms = 3 ohms
Answered by Anonymous
what happened
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