Question

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 the
resistance per unit length of wire.*​

Answer 1

Explanation:

When a potential difference of

is applied across the ends of a wire of

length, a current of

is found to flow through it. Calculate <br> (i) the resistance per unit length of the wire, <br> (ii) the resistance of

length of the wire. <br> (iii) the resistance across the ends of the wire if it doubled on itself.