A steady current is set up in a metallic wire of a non-uniform cross-section. How is the rate of flow of electrons (R) related to the area of the cross-section

Open in App

Solution

Electric Current is defined as rate of flow of charges hence it is proportional to rate of flow of electrons.
By Kirchhoff's current/Junction law, the wire is not storing or producing any charge, hence current coming in equals the current going out at any point of the wire irrespective of its cross section area.
Hence current remains a constant.

Suggest Corrections

Similar questions

A steady current is set up in a metallic wire of non-uniform cross section. How is the rate of flow of free electrons related to the area of cross section A?

Q. A steady current is set up in a metallic wire of non-uniform cross section. Then the drift velocity is related to the area of cross section (A) as:

Q. When a steady current of

1 A

flows through a copper wire, the number of electrons crossing any cross-section area of the wire in one second is ______.

Q. A steady current passes through a wire of non-uniform cross-section. The quantities which depend on the Area of cross-section are:

Q. A steady current flows in a metallic conductor of non-uniform cross-section. Which of the following quantities is constant along the conductor?

Join BYJU'S Learning Program