Two ends of a conducting wire of non-uniform cross-section are connected to a battery. Explain why the electric field at the thinner section is different from the electric field at the thicker section.

A steady current flows in a metallic conductor of non uniform cross-section. The quantity quautities constant along the length of the conductor is / are

Water is flowing steadily through a horizontal pipe of non- uniform cross-section. The pressure of water is 4xx10^4 at a point, where cross-section is 0.02m^2 and velocity of flow is 2ms^-1 . What is the pressure at a point, where cross-section reduces to 0.01m^2 ?