檢視簡易小馬達的原始碼

===實驗===
<img src='http://science4everyone.net/file/%E5%BC%B5%E9%88%9E%E7%A5%BA/1580785098395.jpg' width='500px'/>

<img src='http://science4everyone.net/file/%E5%BC%B5%E9%88%9E%E7%A5%BA/1580785651976.jpg' width='700px'/>

<videoflash>O-_KuFJTCOQ</videoflash>
<videoflash>Tpu7a8awlSU</videoflash>

<img src='http://science4everyone.net/file/%E5%BC%B5%E9%88%9E%E7%A5%BA/dcmotor2.gif' width='400px'/>
<img src='http://science4everyone.net/file/%E5%BC%B5%E9%88%9E%E7%A5%BA/%E6%96%B0%E5%BB%BA%E6%AA%94%E6%A1%88%202019-12-03%2014.30.02.jpg' width='400px'/>

===探究問題===
<s4e>
pid=365
show=問題探究
</s4e>