# What is the magnetic field outside as solenoid?

## What is the magnetic field outside as solenoid?

Magnetic field outside a solenoid is negligible.

Is magnetic field inside a solenoid is zero?

magnetic field inside a solenoid is uniform as the lines move from north to south in a uniform manner with same magnitude without giving any diflection except for the fact that magnetic fields are stronger near the poles.

Why is B is zero outside the solenoid?

Because although the magnetic field is stronger inside the solenoid (because the shape of the solenoid reinforces it) the current flowing through the coil generates a magnetic field outside too and it is not cancelled completely, thus B is non-zero outside the solenoid.

### What is magnetic field inside a solenoid?

Inside a solenoid the magnetic field lines will be straight lines and the field will be strong. Outside the solenoid the magnetic field will be weak and the field lines will curl up to form closed loops. Hence, the magnetic field inside a solenoid will be uniform.

Why is the magnetic field inside a solenoid stronger than outside?

Why is the magnetic field inside a solenoid stronger than outside? The field inside a solenoid is strong and uniform. The small magnetic fields caused by the current in each turn of the coil add together to make a stronger overall magnetic field.

Why is the magnetic field outside an ideal solenoid 0?

The magnetic field lines follow the longitudinal path of the solenoid inside, so they must go in the opposite direction outside of the solenoid so that the lines can form a loop. In order for the total number of field lines to be conserved, the field outside must go to zero as the solenoid gets longer.

#### What is the magnetic field outside a solenoid Mcq?

There are no magnetic lines of force outside a solenoid, hence the magnetic field outside a solenoid is zero.

Why magnetic field is solenoidal?

Solenoid. A long straight coil of wire can be used to generate a nearly uniform magnetic field similar to that of a bar magnet. Such coils, called solenoids, have an enormous number of practical applications. The field can be greatly strengthened by the addition of an iron core.

Why is the magnetic field inside a solenoid stronger than the magnetic field outside?

The field inside a solenoid is strong and uniform. The small magnetic fields caused by the current in each turn of the coil add together to make a stronger overall magnetic field.

## Is magnetic field outside a solenoid uniform?

Outside. A similar argument can be applied to the loop a to conclude that the field outside the solenoid is radially uniform or constant.

What is a solenoid wrapped around?

Soft iron metal which the solenoid is wrapped around. An electromagnet uses the principle that a current through a wire causes a magnetic field. Its strength depends on the current, the core and the number of coils in the solenoid.

What is meant by solenoidal field?

In vector calculus a solenoidal vector field (also known as an incompressible vector field, a divergence-free vector field, or a transverse vector field) is a vector field v with divergence zero at all points in the field: A common way of expressing this property is to say that the field has no sources or sinks.