What is the point charge? Explain with example and how it is obtained?

1.	What is the point charge? Explain with example and how it is obtained?
Answer» The electric field of a point CHARGE can be OBTAINED from Coulomb's law: The electric field from any number of point charges can be obtained from a VECTOR sum of the individual FIELDS. A positive number is taken to be an outward field; the field of a negative charge is TOWARD it. This electric field expression can also be obtained by applying Gauss' law.

Answer»

The electric field of a point CHARGE can be OBTAINED from Coulomb's law:

The electric field from any number of point charges can be obtained from a VECTOR sum of the individual FIELDS. A positive number is taken to be an outward field; the field of a negative charge is TOWARD it.

This electric field expression can also be obtained by applying Gauss' law.

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What is the point charge? Explain with example and how it is obtained?

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