Question

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

Answer 1

for 1 m resistance is 1 ohm
so for 2 m resistance is 2 ohm