Question

what is null point and non uniform magnetic field​

Answer 1

Answer:

Null

In physics a null is a point in a field where the field quantity is zero as the result of two or more opposing quantities completely cancelling each other. The field may be scalar, vector or tensor in nature.

non uniform magnetic field

If the magnetic induction varies in magnitude and direction at different points in a region, the magnetic field is said to be non-uniform. The magnetic field in an area is non-uniform if it has dissimilar magnetic intensities at diverse points in the area.

Answer 2

Null point is neutral point in a magnetic field