IB Physics: Transformers

[@-homechord-2908]

Thank you so much, Mr. Doner. My whole class (including my teacher) thinks you rock.

[@Pokefan462]

Looks like the one dislike is Edison, mad that he didn't get the standardized household voltage to be DC.

[@jonobruce1569]

who the hell disliked this vid this is god tier

[@thatonebadbro1616]

Thank you, from the bottom of my heart

[@asimmessi876]

Honestly Chris you are a saviour ..!!!! :)

[@saifshahin3644]

Why isint answer b to the first example 1/4? isn't Vp/Vs = Np/Ns?

[@donerphysics]

That is right, but the question asks for the ratio of secondary to primary, Ns/Np.

[@barbaros7350]

There are no videos about rectification for topic 11.2

[@donerphysics]

See the review video.

[@GamingKing269]

To what does the frequency pertain to?

[@donerphysics]

The voltage or current.

[@ishaansubudhi7248]

I'm writing my papers today afternoon and I'm doing some last minute revision

[@donerphysics]

I hope it went well.

[@justinlam1542]

Appreciate these videos man, its very helpful

[@adityanair7892]

Mr. Doner, in the exam, should I put the negative (minus) sign in? This question is in general for any question not just related to transformers.

[@donerphysics]

You should know what the negative sign means. I can not think of any numerical instances where it would matter. See the Lenz's law video if you do not know why there is a negative slgn..

[@adityanair7892]

Chris Doner thank you sir

[@shafinkheraj8210]

Thank you 💜

[@ericnigro6386]

Don-ster this is a separate physics question, can jet fuel melt steel beams? thank much ...;)