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magnetic effects of electric current — Science STD 10 — Question

Gujarat BoardEnglish MediumSTD 10Sciencemagnetic effects of electric current3 Marks
Question
Explain induced potential difference (or electromotive force) and induced electric current. On what factor does induced potential difference (or electromotive force) depend?
✓

Answer

  • Because of the rate of change of number of magnetic field lines linked with the loop during the relative motion of a magnet and loop or due to a changing current in a nearby conductor, an electric potential difference is induced in the coil.
  • It is called induced potential difference (or electromotive force).
  • Due to this electromotive force, electric current is obtained in a loop.
  • It is known as induced electric current.
  • The electromotive force induced in a loop is proportional to the rate of change of number of magnetic field lines associated with the loop and the number of turns of a loop.

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