Question

Write a short note on electromagnetic force.
Mention its characteristics. ​

Answer 1

Answer:

Salient features of electromagnetic forces:

Same charges oppose each other and different charges attract each other. They obey the inverse square law. These forces operate over distance that is not very large. Electromagnetic forces are the central forces. this is the definition

Explanation:

the fundamental particle of the electromagnetic force is the photon. Photons have no mass, and they all travel at exactly the same speed; c, the speed of light. The behavior of photons is somewhat mysterious in that they exhibit both particle and wave properties. this it the characteristics

Answer 2

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Electromagnetic force : The electromagnetic interaction has its origin in an intrinsic property of matter called electric charge. Thenelectromagnetic force has two facets, electric and magnetic. Between a pair of charged particles there are electric forces, in addition to the ever present weak force of gravity. Furthermore, when charges are in relative motion, an additional magnetic force comes into play. Electric forces act even when the charges are at rest. In contrast, magnetic forces arise exclusively from charges in relative motion and are velocity dependent. The electron/proton spin plays an important role in magnetic interaction.

Common contact forces, such as friction, pushes and pulls, tension in a string, and those exerted during collisions are electromagnetic in origin.

Characteristics :

(1) Electric force can be attractive or repulsive but obeys the inverse square law of distance.

(2) Electromagnetic forces depend on the intervening medium.

(3) They are long-range forces.

(4) They act only when both the interacting bodies are charged and then they are enormously greater than the gravitational force between these bodies.

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