Magnetism 11: Electric Motors

Using a commutator to solve the flipping problem and create an electric motor.

Category:

Education

Tags:

• electric
• motor
• commutator
• magnetic
• field

[sweezy0114]

"because if you did that it, it would just keep flipping over, which I don't know.. could be useful if you wanted to.. flip things."

hahahaha I'm sitting here in the library laughing out loud watching physics videos... only you Sal. You're potentially the only reason I'm going to pass this class.

[FarshidBayat]

Cant you just use an AC supply or is it not possible since if the rotation gets faster it wont be possible and you cant have variable frequency of AC?

[fafase]

Ok, to those who think the video is wrong, well, not, you guys are. The whole video is right. If you doubt then just watch again and again until you figure it out. If he was wrong, you would not be able to watch this videos on an electric computer.

[MrAlb0t]

isn´t it easier if the battery just spins too? :p

oh... nvm... i wish wires could just spin allover :D

[loveshottea]

dude your wires are turning in the wrong direction

[slinkydinkky]

wow thanks so much brodaa

[SuperLLL]

I don't really get why there would be any angular momentum left,shouldn't it amount to zero by the time the coil has taken up the latest conformation???

[bh3ader]

thanks! really helped me

[MarvelsofaLifetime]

6:34 – yes it is. I think that it’s, inspirational that one can learn how an electric motor works, for free, after studying I’d say about just 5 hours of videos. Thanks Sal, I appreciate what you’re doing.

[thoyama]

@hbejgel2 yes!!! me too, it seems to me that (x) is supposed to go into the screen and (o) supposed to come out of the screen, and not the sens of rotation that he draws in this video!!!