• Duration:44 minutes and 58 seconds
  • Date:2017/11/04
  • Uploader:老白菜
Introduction
Electromagnetic waves are a form of motion of electromagnetic fields. Electricity and magnetism can be said to be two sides of the same coin. A changing electric field will produce a magnetic field, and a changing magnetic field will produce an electric field. The changing electric field and the changing magnetic field constitute an inseparable unified field, which is the electromagnetic field. The propagation of the changing electromagnetic field in space forms electromagnetic waves. The changes in electromagnetism are like the gentle breeze blowing on the water surface to generate water waves, so it is called Electromagnetic waves are also often called radio waves.

You Might Like

Recommended Posts

【Discussion】About analog serial port and graphic LCD
Hello everyone, when I was designing the 430 solution, I encountered some resource usage issues. I would like to ask all the experts (Sima Changfeng, please come):1. Can the highest baud rate of 9600
heyuqi Microcontroller MCU
About OSTimeDly(ticks) function
I have a clock with a tick rate of 10ms. I use OSTimeDly(50) in a task to wait for 500ms. However, when I run the task, I find that sometimes the OSTimeDly(50) function does not wait at all, and it ju
ZHANGXUEJIE Real-time operating system RTOS
Colleagues in Hangzhou, do you need help with a project?
I have been in Hangzhou for more than half a year. In Gouzhuang, Yuhang District, what do my colleagues in Hangzhou do on weekends? Are there any who are too busy to take private jobs?
longxtianya Talking
How to Easily Convert USB 2.0 to USB Type-C
[align=left][size=3]This is great, let's go over it and show you guys [/size][/align][align=left][size=3] [/size][/align][align=left][size=3]Wouldn't you be excited to convert your USB 2.0 (or USB 1.1
赵玉田 DIY/Open Source Hardware
Holidays are never enough. Tomorrow is another new day. Keep working hard.
The holiday is over, let's start working and work hard :)
mmmllb Talking
Getting started with Linux, these seven habits are essential!
[align=left] [/align][table=98%] [tr][td=880][align=center]For many Linux beginners, they will feel a lot of discomfort when they first use the Linux system. Here are seven habits that others told me
jingcheng PCB Design

Recommended Content

Hot ArticlesMore

Circuit

可能感兴趣器件

完成课时学习+分/次

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号