When a potential difference of `2 V` is applied across the ends of a wire of `5 m` length,
Channel: Doubtnut
Date: 2020-07-26

When a potential difference of `2 V` is applied across the ends of a wire of `5 m` length, a current of  `1 A` is found to flow through it. Calculate  (i) the resistance per unit length of the wire,  (ii) the resistance of `2 m` length of the wire.  (iii) the resistance across the ends of the wire if it doubled on itself.