Show with the help of a diagram the nature of the magnetic lines of force normal to the plane of current carrying circular coil.

With the help of a diagram show the mechanism of diffusion.

Draw a diagram of the magnetic lines of force to show that a current carrying solenoid is equivalent to a bar magnet.

With the help of a diagram show the sigmoid growth curve.

Using Bio-Savart law determine the magnetic field at any point on the axis of a current carrying circular loop.

What is the nature of lines of force in a uniform magnetic field?

State Biot Savarts law. Write down the expression of magnetic field at the centre of a current carrying circular coil of N turns.

How would you draw diagram of the magnetic lines of force produced due to flow of electric current through a straight conductor and indicate the directions of current and magnetic lines of force in that diagram.

Determine the magnetic field in the following cases applying Biot-Savart law : at the centre of a current carrying circular loop.

Two long straight parallel conducts carrying steady currents I_(1) and I_(2) are separated by a distance d. Explain briefly with the help of suitable diagram, how the magnetic field due to one conductor acts on the other. Hence deduce the expression for the force acting between the two conductors. Mention the nature of this force.

What is the nature of magnetic field in a moving coil galvanometer?