Question

a wire has a length of 2 metre and a resistance of 5 ohm find the electric field existing inside the wire if it carry a current of 10 ampere

Answer 1

Presumably, you mean the electric field inside the wire. Most books will say the field is zero, which is true only for a perfect conductor. Inside ordinary conductors, the field is exactly that required to push the current through the resistance of the wire. So, first compute the voltage along the length of the wire V = I*R, then divide by the total length to get volts per meter. You do the math. By the way, that wire is probably glowing from the heat of 250 watts per meter.

Answer 2

Answer:25V/m

Explanation:first I=10A and by using V=iR V=5×10=50 then E=V/l so 50/2=25