Given figure shows steady flow of current in a metallic conductor of non uniform cross - section. Current density depends inversely upon the area, so, J1> J2 as A1 < A2

When a current of 40 A flows through the conductor of area 10m2, what is the current density?

4 A/m2 1 A/m2 2 A/m2 8 A/m2

4 A/m2

J = I / A J : Current density I : Current A : Area of Cross Section