HELP! Transformer Core and EMF

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From: Wee-Kiat Kong
Date: Sun, 31 May 1998 00:00

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I'm doing as assignment for Physics about induced EMF and I have to describe 
how a transformer works.

My problem is that I don't quite understand what the iron core in 
transformers actually do. Does an alternating current get induced in the core 
due to the magnetic field caused by the primary coil's alternating current? 
Does it (the iron core) therefore create another stronger magnetic flux which 
induces an EMF in the secondary coils?

Also how is the direction of the current in the iron core and the 
secondary coil determined?

Please reply by e-mail and the newsgroup.

Thank you in advance.

Wee-Kiat

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From: Wee-Kiat Kong <wkkong@senet.com.au>
Subject: HELP! Transformer Core and EMF
Date: 1998/05/31
Message-ID: <3571B56A.3563@senet.com.au>
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