# 两种电荷相互作用 - Charge Interaction

库伦定律交互式演示：同种电荷相斥，异种电荷相吸

> 标准页面: https://elysiatools.com/zh/visualizations/charge-interaction

- **分类:** Physics

## 概述

Interactive visualization of charge interaction demonstrating Coulomb's law with four scene switching: positive-positive (repulsion), negative-negative (repulsion), positive-negative (attraction), negative-positive (attraction). Features Coulomb's law formula: F = k·q₁·q₂/r². Real-time visualization includes: (1) Two charges with adjustable signs (+/-) and magnitudes; (2) Force vectors showing interaction direction (red arrows for repulsion, green arrows for attraction); (3) Motion animation with physics-based movement; (4) Electric field lines distribution; (5) Potential energy markers (U = k·q₁·q₂/r, positive for repulsion, negative for attraction). Four scene buttons: ++ (repel), -- (repel), +- (attract), -+ (attract). Animation controls: enable/disable motion, adjust speed, toggle field lines, force vectors, and potential markers. Parameter adjustments: charge magnitude (1-10), initial distance (100-400 px). Reset button to restart animation from initial positions. Educational content covers Coulomb's law statement and mathematical formulation, attraction vs repulsion principle (like charges repel, opposite charges attract, 同种相斥，异种相吸), force direction (along the line connecting charges, 沿连线方向), electric potential energy (positive for repulsion systems, negative for attraction, potential energy decreases as system moves toward equilibrium), and field line visualization (field lines from positive charges to negative charges, never cross, perpendicular to equipotential surfaces). Practical applications: atomic structure (electron-nucleus attraction, electron-electron repulsion), electrostatic precipitators, photocopiers and laser printers (charged toner attraction), particle accelerators, biological systems (nerve impulses from ion movement), and everyday phenomena (static electricity, lightning). Multi-language support (zh, en, es, fr, de, ru, pt).

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