Electric Potential Due to Point Charge
A point charge is given in the figure below. The concentric circles represent the equipotential. That means, that at all the points in a single surface, the potential is the same. The goal is to calculate the electric potential due to this point charge between two points A and B.
Electric potential difference is also called voltage, and it is measured in the units of Volts.
VoltageAB = Electric potential differenceAB =
The potential has been defined as a difference; a formulation in terms of absolute potential is required. Let’s modify the above formulation to come up with this new definition. At infinite, the electric field and the potential are assumed to be zero. Now, the potential at every point will be calculated with respect to the infinite, and it will give an absolute value of the potential.
Now, rB = ∞ and rA
VoltageAB =
=
Now, rB = ∞
=
=
Electric Potential Of A Dipole and System Of Charges
Electric Potential is defined as the force experienced by a charge inside the electric field of any other charge. mathematically it is defined as the ratio of electric potential energy that is required to take a test charge from infinity to a point inside the electric field of any other charge with the magnitude of the test charge.
Electric potential at any point is determined by the number and orientation of the test charges arranged in their surroundings and their distance from those charges. In this article we will learn about electric potential due to system of charges, its formula, examples and other in detail.
Table of Content
- What is Electric Potential?
- Electric Potential Due to Point Charge
- Electric Potential Due to System of Charges
- Solved Examples on Electric Potential
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