Capacitance of Cube Calculator

Capacitance, a fundamental concept in physics, is the ability of a body to store an electric charge. In electrostatics and electrical engineering, the capacitance of a cube is an intriguing study. This tutorial delves into the formula used to calculate the capacitance of a cube, the origin of the formula, real-world applications, key contributors to the discipline, and some fascinating facts.

Electrical Capacitance of a Cube based on Radius Calculator Calculator
Capacitance of Cube Calculator Results
Capacitance of Cube = F

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Example Formula

The calculation of the capacitance of a cube is not as straightforward as that of a sphere or a parallel plate capacitor, mainly due to the complex electric field distribution. However, for a cube-shaped capacitor where each face is closely approximated by a plate of a parallel plate capacitor, a simplified formula can be used:

C = ε0A/d


  1. C: is the Capacitance measured in Farads (F)
  2. ε0: is the Permittivity of free space (~8.854 x 10-12 F/m)
  3. A: is the Area of one face of the cube in square meters (m2)
  4. d: is the Distance between the plates in meters (m), in this case, the length of an edge of the cube

Note: A = d d

Who Wrote/Refined the Formula

The concept of capacitance and the associated formula were initially introduced by the British scientist Michael Faraday. The formula above is a simplified version of the more complex equation for capacitance. The model of a cube as a parallel plate capacitor is an approximation and does not account for edge effects and non-uniform field distribution.

Real Life Application

In real life, the exact capacitance of a cube doesn't often come into play due to the complex field distribution. However, understanding the principles behind the calculation can aid in designing various electrical systems and circuits, such as in the optimization of space for integrated circuits in electronics.

Key Individuals in the Discipline

Michael Faraday is a key individual in this field. His introduction of the concept of electric capacitance and his groundbreaking work in electromagnetism have significantly shaped the study of physics. Other scientists such as James Clerk Maxwell have also made substantial contributions, with Maxwell's equations being foundational to the field of electromagnetism.

Interesting Facts

  1. The capacitance concept is at the core of capacitive touch screens used in smartphones and tablets.
  2. Capacitance has transformed technology, enabling the creation of radio, telecommunication systems, and modern computing technology.
  3. The advancements in understanding and utilizing capacitance have revolutionized the field of physics and electrical engineering.


Understanding the capacitance of a cube, though not as common as other geometries, can provide valuable insight into the broader concept of capacitance and its applications. The fundamental principles discussed in this tutorial not only underscore key aspects of electrostatics and electrical engineering but also shed light on how these principles continue to shape our technology-dependent society.

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