History Lesson

There are two ways to determine whether a high voltage is present in a circuit. One is to spit on your thumb and index finger, place them across the circuit and wait for the jolt.

The other is to hook up a voltmeter.

The voltmeter is a classic instrument, still indispensable despite its age (the magnet-and-coil mechanism on which it is based dates back to the galvanometer, introduced by the French physician and physicist Jacques-Ars

Would you recommend this article?

0
0

Share

Thanks for taking the time to let us know what you think of this article!
We'd love to hear your opinion about this or any other story you read in our publication. Click this link to send me a note →

Jim Love, Chief Content Officer, IT World Canada

Related Tech News