Electromagnetic induction

[AntoMelta]

I am very happy to see the vidoe after you give this Electromagnetic induction. A changing magnetic flux induces a current into a coil.

[willamricard]

I Love The Video It Can Increase My Knowledge Electromagnetic induction. A changing magnetic flux induces a current into a coil.

[imegatrone]

Steady I Really Like This Video Electromagnetic induction. A changing magnetic flux induces a current into a coil.

[Melehete]

Good, I like that you share this video, I wish success always Good, I like that you share this video, I wish success always

[NganaJHone]

Nice Video Electromagnetic induction. A changing magnetic flux induces a current into a coil. That You Share , So Very Nice Thanks You

[Ondelendo]

I Really Like The Video From Your Electromagnetic induction. A changing magnetic flux induces a current into a coil.

[bundawartini]

Your Video Is Very Useful Sharing Electromagnetic induction

[ruski1945]

hehehe thats what she said!

[MrVaibhavAtomic]

lovely, thiz helped me in mah exam!!!!!!!!!!!!

[TheZenPerspective]

Not only have you simply explained this, you have also taught me that if you put something hard in a hole the wrong way it will create a negative outcome. Cheers!

[rockypricky]

is the current ac or dc.....................?

[ibphysicshelp]

@rockypricky Could be either d.c. or a.c. - mostly a.c. . If the flux changes at constant rate, the emf induced is a constant and hence the current produced is d.c. . However, in most cases the rate of change of the flux is not constant (e.g. magnet in and out of a coil) and therefore the current induced is a.c. .

[rockypricky]

@ibphysicshelp thnx

[razblack]

1:15 OUCH.. lol

[kerneilkhan13]

but what the solenoid is this!?

[ibphysicshelp]

@ActiveStorage Yes. At some point, as the magnet goes entirely through the coil, the flux is not changing and the induced emf is 0. Try to visualize the field lines: when the mid point of the magnet passes through the coil, there is almost no change in the flux. The essential condition here is not to have a magnet moving but to have a changing magnetic flux. Emf can be induced even in a completely static setup (see the last demo in this video).

I hope this helps.

[altium1]

Very nice and clear experiment, thank you.

[ahoogaa]

super cool video, explains a lot!

if only electricity books would include videos like this...

oh and by the way, 1:18 FAIL XD

[KnappenMx]

what happens if you move the inductor instead of the magnet?

[ibphysicshelp]

@KnappenMx No change. Everything would look the same.

[KnappenMx]

@ibphysicshelp ty :)

[ashwinjags05]

In which direction the current is induced ??

[MusicalAndTall]

@ashwinjags05 Both.

[bahanchodrandi]

what happens if u take it out in the same direction that u put it in? meaning u put the magnet in the coil from say the right and push it through and take it out of the left,, will the current induced change direction? if possible could u make a demo about it? thanks

[ibphysicshelp]

@bahanchodrandi On a voltage-time graph the result would look like a crest followed by a trough. The result also depends on the length of the coil, the length of the bar magnet and the characteristics of magnet's motion. If I have time and I find the right equipment, I'll upload a little demo.

[ActiveStorage]

@ibphysicshelp so technically when u move a magnet all the way through the coil there will be a moment where the voltage is zero?

[ActiveStorage]

@ibphysicshelp even though the magnet would be still moving through the coil..

[currentmachine]

@bahanchodrandi

meaning u put the magnet in the coil from say the right and push it through and take it out of the left,, will the current induced change direction? . (Currentmachine) yes it change direction.

[Wapajama99]

Very good demonstration