Unit Converters

Surface Current Density Converter

Surface current density is a fundamental concept in electromagnetism. It analyzes and designs electromagnetic devices and circuits, especially those using conductors with non-uniform transverse section areas or conductive surfaces. It helps to understand the behavior of electric and magnetic fields near conductor surfaces.

ampere/square inch (A,in^2)ampere/square centimeter ampere/square mil (A,mi^2)ampere/square meter (A,m^2)ampere/cicular mil abampere/square centimeter
ampere/square inch (A,in^2)ampere/square centimeter ampere/square mil (A,mi^2)ampere/square meter (A,m^2)ampere/cicular mil abampere/square centimeter

What is surface current density?

A critical application of surface current density is the creation and estimation of antennas. Antennas often rely on surface currents to emit or receive electromagnetic waves.

By understanding the distribution and magnitude of the surface current density, engineers can optimize antenna designs to radiate or receive electromagnetic signals effectively.

Surface current density conversions are also used in the design of electromagnetic shielding.

Conductive materials are often used to shield sensitive electronic components or devices from external electromagnetic interference.

How to calculate surface current density?

And this is the actual surface current density formula for calculations - K = I / A


K is the surface current intensity (A/m² or A/cm²), I is the current moving along the surface of the conductor (A), and A is the cross-sectional area of the conductor's surface (m² or cm²).

Magnitudes per unit area calculations are relevant when analyzing the behavior of electric and magnetic fields near conductive surfaces. The flux density distribution affects the character of the areas and can have implications for the operation of electromagnetic devices and circuits.


How to use the surface current density?

To use the surface current density calculator, follow these steps:

  • Enter the current value and the conductor area value;
  • Click the button to continue the calculation online;
  • The calculator will display the result for you.
  • How accurate are the calculator results?

    The converter is designed to get only correct calculation results quickly. However, it is always recommended to double-check the entered data for calculations. For self-check, you can also compare the calculator's result with the development of mathematics by formula.