Physics Topic: EMI

  1. Define magnetic flux and the weber

  2. Recall and solve problems using Flux = BA

  3. Define magnetic flux linkage

  4. Infer from appropriate experiments on electromagnetic induction:

    1. that a changing magnetic flux can induce an e.m.f. in a circuit.
    2. that the direction of the induced e.m.f. opposes the change producing it.
    3. the factors affecting the magnitude of the induced e.m.f.

  5. Recall and solve problems using Faraday’s law of electromagnetic induction and Lenz’s Law.

  6. Explain simple applications of electromagnetic induction.

  7. show an understanding of the principle of operation of a simple iron-core transformer and recall and solve problems using Ns / Np = Vs / Vp = Ip / Is for an ideal transformer.