Why magnetic field is not zero outside the solenoid?

Why magnetic field is not zero outside the solenoid?

Magnetic field outside a long solenoid can never be zero. Because a solenoid of finite length will have edges and field will come out. However, if we imagine a straigth solenoid of infonite length or a toroid, it will not have edges from where lines of force can come out.

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.

Is there no magnetic field outside a solenoid?

Note: For a very long solenoid the magnetic field outside will be zero and magnetic will be present only inside the solenoid.

Why is magnetic field constant inside a solenoid?

The magnetic field inside a solenoid is proportional to both the applied current and the number of turns per unit length. There is no dependence on the diameter of the solenoid, and the field strength doesn’t depend on the position inside the solenoid, i.e., the field inside is constant.

Does the magnetic field outside solenoid depend on the distance from the solenoid?

Does the magnetic field outside the solenoid depend on the distance from the solenoid? Yes, the magnetic field is stronger closer to the solenoid.

Which end of solenoid is north?

(a) The end of the solenoid at which current flows in the anticlockwise direction will act as a north pole and the end where current flows in clockwise direction will act as a south pole. (b) The magnetic field produced in a current carrying solenoid is similar to that produced by a bar magnet. (c) Force on a 10 cm.

Under what condition field outside is taken zero for a solenoid?

magnetic field
The magnetic field lines exist outside the solenoid, but the number of field lines per unit area outside the solenoid is much less compared to the number of lines per unit area inside the solenoid. Hence the magnetic field outside is so feeble that it is considered to be practically zero.

What is magnetic induction B at the point inside solenoid?

B is the magnetic field. μ∘ is the permeability of the free space, n is the number of turns, I is the current flowing through the solenoid.

Where is magnetic field zero in solenoid?

The magnetic field lines exist outside the solenoid, but the number of field lines per unit area (flux) outside the solenoid is much less compared to the number of lines per unit area (flux) inside the solenoid. Hence the magnetic field outside is so weak that it is considered to be practically zero.

What is N in solenoid?

A coil of wire which is designed to generate a strong magnetic field within the coil is called a solenoid. N denotes the number of turns the solenoid has. More the number of loops, stronger is the magnetic field. A solenoid is a type of electromagnet whose intention is to produce a controlled magnetic field.

Which of the following magnetic moment is zero?

In which of the following magnetic moment is zero? Explanation: In a diamagnetic material, the electron orbits are more or less random, and mostly all the magnetic moments are cancelled. Similarly, all the spins are almost paired. Hence the net magnetic moment in the diamagnetic material is zero.

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.

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