Derive an ecpression for electric field …
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Gaurav Seth 5 years, 3 months ago
For points on axial line
The axial line of a dipole is the line passing through the positive and negative charges of the electric dipole.
Consider a system of charges (-q and +q) separated by a distance 2a. Let ‘P’ be any point on an axis where the field intensity is to be determined.
Electric field at P (EB) due to +q
Electric field at P due to -q (EA)
Net field at P is given by
Simplifying, we get
As a special case :
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