Electric Field Calculator

electric field calculator

Electric Field calculator

Created by Team y2calculate

Content written by Jane (PhD)

Coding by Marcelino 

Reviewed by Sajid khan (head of content)

Fact checked 🔍✓

Published: October 27, 2023 → Last Updated: February 9, 2024

How to use electric field calculator?

Are you a student of physics and looking for an online tool that can make your electric field calculation task easy to go? Look no further we have made an electric field calculator for you, the calculator can calculate any kind of electric field. just enter the charge in Columb, for more convenience we have assigned different units of charges like columb and microcolumn. In 2nd label enter the distance from the charge, click the calculate button and the electric field tool will display the result for you.

What is the Electric Field?

The electric field is the force is the force of attraction or repulsion created by a single charge, The electric field can be positive or negative. The positive electric field is created by a proton while the negative electric field is created by an electron. In either case, the electric field is quantized, and each electric and proton creates equal electric field but in the opposite direction which is equal to e=1.6×e-19.‍ C. You can calculate positive or negative electric field with the above electric field calculator

Formula to calculate electric field

The formula to calculate Electric Field (\(E\)) is:

\[ E = k \times \frac{q}{{r^2}} \]


  • \(E\): Electric Field
  • \(k\): Coulomb's constant (\(8.988 \times 10^9 \, \text{N m}^2/\text{C}^2\))
  • \(q\): Charge
  • \(r\): Distance

Example: Suppose the charge (\(q\)) is 2 Coulombs and the distance (\(r\)) is 3 meters. Calculate the Electric Field.


Using the Electric Field formula:

\[ E = 8.988 \times 10^9 \times \frac{2}{{3^2}} \]

Calculating the result:

\[ E \approx 2 \times 10^9 \, \text{N/C} \]

Therefore, the Electric Field is approximately \(2 \times 10^9 \, \text{N/C}\).


How the electric field creates?

Electric fields are created by the presence of electric charges. Imagine tiny particles called electrons and protons. Electrons carry a negative charge, while protons have a positive charge. When these charged particles gather, they create an electric field around them. This field is like an invisible force that extends into the space around the charges. The strength of the field depends on the amount of charge and how far you are from it. The electric field is the reason why, for example, when you rub a balloon against your hair, the balloon becomes charged, and your hair sticks to it. This is because the charges on the balloon create an electric field that attracts the charged particles in your hair. So, in simple terms, electric fields are like an invisible influence that charged objects have on the space around them.

Is the Electric Field the Same Everywhere Around a Charge?

No, the electric field strength varies with distance from the charge. It follows an inverse-square law, decreasing as the distance from the charge increases.

What Units are Used to Measure the Electric Field?

The SI unit for electric field is newtons per coulomb (N/C).

Is the Electric Field Scalar or Vector?

The electric field is a vector quantity, meaning it has both magnitude and direction.

What Happens to the Electric Field if Another Charge is Introduced?

The electric field at a point is influenced by all surrounding charges. If a new charge is introduced, it will alter the existing electric field at that point.

Can Electric Fields Exist in Conductors?

In electrostatic equilibrium, the electric field inside a conductor is zero. Any excess charge resides on the surface, creating an electric field only outside the conductor.

Electric Field vs. Magnetic Field

Electric fields are created by electric charges, while magnetic fields are generated by moving charges, such as currents. Electric fields exert forces on charged particles, whereas magnetic fields exert forces on moving charged particles.  electromagnetism.

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