The image above represents force of attraction or repulsion.

To compute for force of attraction or repulsion, five essential parameters are needed and these parameters are **Magnetic Permeability of Vacuum (μ _{o}), Strength of Magnetic Pole 1 (m_{1}), Strength of Magnetic Pole 2 (m_{2}), Distance Seperating the Poles (r) **and

**Relative Magnetic Permeability (μ**

_{R}).The formula for calculating force of attraction or repulsion:

F = ^{μom1m2} / _{4πμRr²}

Where:

F = Force of Attraction or Repulsion

μ_{o} = Magnetic Permeability of Vacuum

m_{1} = Strength of Magnetic Pole 1

m_{2} = Strength of Magnetic Pole 2

r = Distance Separating the Poles

μ_{R} = Relative Magnetic Permeability

Let’s solve an example;

Find the force of attraction or repulsion when the magnetic permeability of vaccum is 1.2566371E-6, strength of magnetic pole 1 is 10, strength of magnetic pole 2 is 12, distance seperating the poles is 8 and the relative magnetic permeability is 14.

This implies that;

μ_{o} = Magnetic Permeability of Vacuum = 1.2566371E-6

m_{1} = Strength of Magnetic Pole 1 = 10

m_{2} = Strength of Magnetic Pole 2 = 12

r = Distance Separating the Poles = 8

μ_{R} = Relative Magnetic Permeability = 14

F = ^{μom1m2} / _{4πμRr²}

F = ^{0.0000012566371(10)(12)} / _{4π(14)(8)²}

F = ^{0.000150796452} / _{4π(14)(64)}

F = ^{0.000150796452} / _{11259.468}

F = 1.339e-8

Therefore, the **force of attraction or repulsion **is **1.339e-8.**

Continue reading How to Calculate and Solve for Force of Attraction or Repulsion | Magnetic Field