Understanding Electric Intensity: Definition and Examples

Learn about electric intensity, its definition, calculation methods, and importance in various fields. Explore examples and case studies to understand its practical applications.

What is Electric Intensity?

Electric intensity, also known as electric field intensity, is the force exerted on a positive charge placed at a point in an electric field. It represents the strength of the electric field at that point and is measured in volts per meter (V/m). Electric intensity is a vector quantity, meaning it has both magnitude and direction.

Calculating Electric Intensity

To calculate the electric intensity at a point in an electric field, you can use the formula:

E = F/q

where E is the electric intensity, F is the force exerted on the charge q, and q is the magnitude of the charge.

Examples of Electric Intensity

Imagine a point charge of +2C placed in an electric field where the force exerted on it is 6N. The electric intensity at that point would be:

E = 6N/2C = 3V/m

Case Study: Electric Intensity in Capacitors

In a parallel plate capacitor, the electric intensity between the plates is given by the formula:

E = V/d

where V is the voltage across the plates and d is the distance between the plates. Understanding the electric intensity in capacitors is crucial for designing efficient electrical circuits.

Importance of Electric Intensity

Electric intensity plays a vital role in various fields such as engineering, physics, and technology. It helps in understanding the behavior of electric fields, designing electrical systems, and calculating the potential difference between points in a circuit.


Electric intensity is an essential concept in the study of electricity and electromagnetism. By understanding its definition and calculation methods, you can gain insight into the behavior of electric fields and their applications in various industries.

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