كهرباء - ميكانيك - اتصالات - IT

What is the nature of electricity?

All matters consists of minute particles called molecules which are themselves made up still minute particles known as atoms. An atom has a hard central core known as nucleus. It consists of protons and neutrons. The protons are positively charged and neutrons are electrically neutral. Electrons revolve round the nucleus, in orbits. The number of electrons and protons in an atom is same hence an atom is as a whole is electrically neutral. The centripetal force necessary to keep electrons rotating round the nucleus is supplied by the force of attraction between nucleus and electrons. It is obvious that this force becomes weaker as the distance of the electrons from nucleus increases. It is found that in metals the outermost electrons are very loosely attached to the atom. In fact they can be hardly said to be attached to one parent atom, they very freely move from one atom to another in random manner.

If a potential difference is applied across a metallic conductor, due to electric field, the electrons experience an attractive force towards higher potential or positive terminal of the conductor. As a result the free electrons start drifting from negative terminal to positive terminal of the conductor. This continuous flow of electrons constitute an electric current. This is answer of your question what is the nature of electricity ?.

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6.4K viewsApr 15, 2020 at 23:49

What is the nature of electricity?

All matters consists of minute particles called molecules which are themselves made up still minute particles known as atoms. An atom has a hard central core known as nucleus. It consists of protons and neutrons. The protons are positively charged and neutrons are electrically neutral. Electrons revolve round the nucleus, in orbits. The number of electrons and protons in an atom is same hence an atom is as a whole is electrically neutral. The centripetal force necessary to keep electrons rotating round the nucleus is supplied by the force of attraction between nucleus and electrons. It is obvious that this force becomes weaker as the distance of the electrons from nucleus increases. It is found that in metals the outermost electrons are very loosely attached to the atom. In fact they can be hardly said to be attached to one parent atom, they very freely move from one atom to another in random manner.

If a potential difference is applied across a metallic conductor, due to electric field, the electrons experience an attractive force towards higher potential or positive terminal of the conductor. As a result the free electrons start drifting from negative terminal to positive terminal of the conductor. This continuous flow of electrons constitute an electric current. This is answer of your question what is the nature of electricity ?.

📚المكتبة الهندسية📚
@mc4eng_books

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