What is electric feild entensity
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Gaurav Seth 6 years, 5 months ago
Electric Field Intensity:
Electric field intensity is the measure of intensity or strength of electrical force per unit charge at any given point in the electric field. It is denoted by the letter E and its Unit is Newton per Coulomb (N/C).
Mathematically we can derive the expression or formula for the Electric field intensity as:
As shown in the figure below:
Let, Q1 and Q2 be the two charges separated by a distance “d” and let F be the force built between them.
Now, If we need to calculate the electric field intensity in Q2 due to the electric field of Q1 then by definition the electric field intensity is the electrical force per unit charge.
Or,
And by Coulomb's law, we know the force F =
Thus,
Or,
3Thank You