Mutual Induction - Transformers

  1. I have a college assignment which asks:

    A transformer works on the principle of Mutual Induction. Describe how a transformer uses this principle to step up or step down voltage and current.

    Now i need to answer this question and hand the assignment in on Monday but since i have been ill over the past few weeks i havent the foggiest what mutual induction is and how to answer this question.

    I have tried searching on Google and got these results:

    http://www.google.co.uk/search?hl=en...nsformer&meta=

    But as i don't know anything about the subject i wondered if anyone could help me find one of those links which is relevant to the question or if anyone has any information from themselves or another source.

    Any help would be much appreciated.

    Thanks,

    Stephen
     
  2. jcsd
  3. Anyone with any suggestions please?
     
  4. No-one got a clue like me?

    :frown:
     
  5. I suggest you read up about Faraday's Law:
    http://hyperphysics.phy-astr.gsu.edu/Hbase/electric/farlaw.html

    Then think: if you put changing AC current (transformers work only with AC) through one solenoid of the transformer, what happens to the magnetic field generated by it? And how does this effect the second solenoid?
     
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