• Duration:45 minutes and 10 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.
Unfold ↓

You Might Like

Recommended Posts

News Morning Express: Energy-saving lighting-grade, neutral white and warm white LEDs
Cree is still the world leader in LED technology. Let's take a look at the news:
tagetage LED Zone
Some understanding of latch-up effect
[align=left][font=楷体,楷体_GB2312][size=4]In fact, [b]when a running circuit freezes in a certain state due to interference or internal errors (similar to a computer crash), it can be considered a latch-
hk6108 Analog electronics
[MsgOS] Shell first experience
[font=Tahoma, Helvetica, SimSun, sans-serif]Following the previous two posts, today I will introduce the usage and features of MsgOS command line. [/font] [font=Tahoma, Helvetica, SimSun, sans-serif]I
科技猎人 stm32/stm8
Can the installation disk running on WinCE install files to NandFlash?
Can the installation disk running on WinCE install files to NandFlash?
saber1126 The Industrial Cloud
【E840-DTU】MQTT——ONENET
The E840-DTU I requested has finally arrived. Let’s take a look at this:Since DTU only has one host, you need to equip yourself with a SIM card, antenna, 8-28V DC power supply, and 485/232 to TTL befo
lugl4313820 RF/Wirelessly
Keil uv3 quick start demo
chenzhufly Microcontroller MCU

Recommended Content

可能感兴趣器件

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