免费电流密度计算器

计算导体中的电流密度J=I/A。

A
mm²

Current Density

4,000,000 A/m²

Current Density4.00 A/mm²

Current Density vs Current

查看公式 →

公式

## Current Density Current density describes how much current flows through a unit area of a conductor. ### Formula **J = I / A** where I is the current and A is the cross-sectional area of the conductor. High current density causes excessive heating.

计算示例

10 A through a wire with 2.5 mm² cross-section.

  1. 01J = I / A
  2. 02J = 10 / 2.5 mm²
  3. 03J = 4 A/mm²
  4. 04J = 4,000,000 A/m²