<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>磁场 on 如是有为</title><link>https://sensor.fans/tags/%E7%A3%81%E5%9C%BA/</link><description>Recent content in 磁场 on 如是有为</description><generator>Hugo</generator><language>zh</language><lastBuildDate>Mon, 19 Oct 2026 19:54:00 +0800</lastBuildDate><atom:link href="https://sensor.fans/tags/%E7%A3%81%E5%9C%BA/index.xml" rel="self" type="application/rss+xml"/><item><title>一块磁铁周围的磁场，究竟是什么样子的？</title><link>https://sensor.fans/posts/wechat-zcce5eonptzr6uempxjblq/</link><pubDate>Mon, 19 Oct 2026 19:54:00 +0800</pubDate><guid>https://sensor.fans/posts/wechat-zcce5eonptzr6uempxjblq/</guid><description>&lt;p>把一块磁铁放在白纸下面，撒上铁粉，轻敲纸面，铁粉就会排成一条条弧线，从一极绕向另一极。这张图很多人在中学课本里都见过，它给了我们对磁铁周围磁场最直观的印象。&lt;/p></description></item></channel></rss>