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4 marksElectromagnetic Induction

CAPE Physics Unit 2 · 2004 · Paper 1 · Question 5(a)(i)

Transformer theory and principles.

With the aid of a labelled diagram, explain the operation of an ideal transformer.

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Other parts of this question

  1. 5(a)(ii)Write down an expression relating Np, Ns, Vp, and Vs for a transformer.[1 mark]
  2. 5(b)(i)Calculate the voltage across the secondary windings when the switch is open.[1 mark]
  3. 5(b)(ii)Calculate the currents in the primary and secondary windings when the switch is closed.[4 marks]

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