Question | Answer |
Electromagnetic Induction | When an emf is induced by a change in the magnetic flux linking a circuit |
Faraday's law | The magnitude of the induced emf is proportional to the rate of change of magnetic flux |
Formula for faraday's law | E = dΦ/dt |
Lenz's law | The direction of the induced emf always opposes the charge causing it |
Formula combing Faraday's law & Lenz's law | E = - dΦ/dt |
Function of generators | Convert mechanical energy into electrical energy |
Process undergone in generators | Rotation of coil of wire in a magnetic field --> change in flux linking the coil --> induction of an emf |
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