Enter the magnitude of the magnetic charge of each magnetic, the permeability of the medium, and the separation between the magnets to determine the magnet pull force between them.

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## Magnet Pull Force Formula

The following formula is used to calculate the magnetic pull force between two magnets.

F = u * q1 * q2 / (4*pi*r^2)

- Where F is the force between magnets (N)
- u is the permiability of the medium between the magnets (t*m/amp)
- q1 is the magnetic charge of the first magnet (amp*m)
- q2 is the magnetic charge of the second magnet (amp*m)
- r is the distance between magnetic centers (m)

## What is a magnetic pull force?

**Definition: **

A magnetic pull force is the total force is takes to pull apart two opposing magnets due to the charge of their magnetic fields.

## How to calculate magnet pull force?

The following example problem outlines the steps and information needed to calculate the magnet pull force between two magnets.

First, determine the permeability of the medium between magnets. For this example, the permeability is equal to 1.

Next, determine the magnetic charge of the first magnet. For this problem, this is measured to be 5 tesla-meters per amp.

Next, determine the magnetic charge of the second magnet. This is measured to be 3 tesla-meters per amp.

Next, determine the distance between the centers of the magnets. This is measured to be 1 meter for this example.

Finally, calculate the magnet pull force using the formula above:

F = u * q1 * q2 / (4*pi*r^2)

F = 1 * 3 * 5 / (4*3.14159*1^2)

F = 1.193 Newtons