Derive an expression for electric intensity …
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Posted by Mahima P Naik 5 years ago
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Gaurav Seth 5 years ago
A point charge is a mathematical point having no dimensions. It can also be a spherical charged body whose entire charge can be considered concentrated at its centre.
An electric field is a field around a charge where its influence can be felt. A charge influences another charge by a force known as the electrostatic force.
Electric field intensity is a quantity that measures how strong is a field at a given point.
Thus Electric field intensity at a point is defined as the force experienced by a vanishingly small charge (known as test charge)placed at that point of the field. Electric field intensity is denoted by E and test charge by qo. Since it involves conception of force, thus electric field intensity is a vector quantity.
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