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What causes magnetic force?

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Answer
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Hint:Let us first get a fundamental understanding of magnetic force before moving on to the question. The attractive or repulsive force exerted between the poles of a magnet and electrically charged moving particles is known as magnetic force. As a result, it is a result of electromagnetic forces.

Complete step by step answer:
Spin is a property that subatomic particles (electrons, protons, and so on) possess. Unlike most other attributes, spin has only two options: 'up spin' and 'down spin.' The spins of subatomic particles are usually all opposites, cancelling each other out and leaving the atom's overall spin zero.
Because some atoms (such as iron, cobalt, and nickel) have an odd number of electrons, their overall spin is up or down rather than zero. When all of the atoms in a lump of this substance have the same spin, the spins add up, and the result is what we call magnetism.
Additional Information:
In a constant magnetic field, current is directly proportional to magnetic force for a straight current carrying conductor.
In fact, this corresponds to:
1. The force on the conductor will double if the current is doubled.
2. If the current is lowered to a third of its original value, the force is reduced to a third of its original value as well.
3. If the current is multiplied by five, the force will also be multiplied by five.
Note:Magnetic forces are non-contact forces that pull or push objects without coming into contact with them. Only a few 'magnetic' metals and not all matter attract magnets. Magnets are attracted to each other and repel each other.