Physics 0625 · IGCSE · Electromagnetic effects

Electromagnetic effects — practice question

The diagram illustrates the structure of a relay. Two components are labelled N and P. Which metal is N made from, and which metal is P made from?

  • AN: soft iron; P: soft iron
  • BN: soft iron; P: steel
  • CN: steel; P: soft iron
  • DN: steel; P: steel

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