Energy & Electricity in Science : How Does a Solenoid Work?

[hellsbells747]

Helped alot! I've just started a 2 year electrical tafe course and its good to know I have your videos to watch!

[AzfarulGiantz]

MY TEaCHER ALWAYS DRAW SELENOID USING A COIL SYMBOL!! I THOUGHT ITS ONLY COIL WITHOUT METAl!!

[faysalbest1]

i am trying to make a switch for my old computer fan just for an experiment :D

[updla]

thanks,helped me for my test tmr!

[lalagushoru123]

thanks loads

[murffdan]

nice



[sullivanseven]

The beginning is good but the last part about circuit breaker is very confusing...

[jennell54]

thx bro i get it now

[ZakDanger]

circuit breaker? 

[alexhwarang5]

tat sounds more like a relay than a solenoid.

[AngelzCharm]

Very nice video! It was very helpful!

[TheAmmarKeylani]

how can I use a solenoid to activate a HHO generator since the direct current coming out from the battery is too much upon that generator?

[qwerty123790]

Thank you very very much.

[melkor2009]

If I got it, u0 is the magnetic permitivity of void, if you insert a ferromagnetic material such as iron, you would change that constant and rise it of some order of magnitude. Ferromagnets might be seen as "magnetic field amplifiers".

[jammarocka15]

thanks a lot

[bodkin77]

very nice explanation. Is the field strength B=u0NIr, where u0 is permitivity constant? And what's the deal with inserting an iron bar into the wire?