Write in vector form, the defining equation for a magnetic field B at a point.

Direction of magnetic field at equatorial point

What is net magnetic field at point O?

In Fig, find the magnetic field at point P.

Find the magnetic field B at the point P in figure

In the figure, what is the magnetic field at the point O ?

In the figure, what is the magnetic field at the point O ?

The mathematical equation for magnetic field lines of force is

For adjoining fig, The magnetic field at point, 'P' will be:

A long straight wire along the z - axis carries a current I in the negative z- direction . The magnetic vector field vec(B) at a point having coordinates (x,y) in the Z = 0 plane is

A long straight wire along the z - axis carries a current I in the negative z- direction . The magnetic vector field vec(B) at a point having coordinates (x,y) in the Z = 0 plane is