Question

calculate the potential difference required across a conductor of resistance 5ohm to make a current of 1.5 A flow through it

Answer 1

v=ir

so,v=1.5*5

so p.d or v=7.5volt

Answer 2

Use $\boxed{\red{Ohms\:Law}}$

V=IR
V=potential difference ✔️

V=1.5×5

V=7.5 volts

Potential difference required is of 7.5 volts