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Question

What factors determine how much voltage is induced?


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Solution

  1. Faraday’s first law of electromagnetic induction states, “Whenever a conductor is placed in a varying magnetic field, an electromotive force is induced. Likewise, if the conductor circuit is closed, a current is induced, which is called induced current.”
  2. Faraday’s first second law of electromagnetic induction states that the induced emf in a coil is equal to the rate of change of flux linkage.

Voltage induced in a circuit due to electromagnetic inductors are determined by the factors:

  1. The emf induced in a coil is equal to the rate of change of magnetic flux linkage through the coil.
  2. As we know from the mathematical formula of induced emf eis e=NABω
  3. Number of turns in a coil N: Number of turns in coil surrounding the core.
  4. The strength of magnetic field B: The strength of the magnetic field is directly proportional to the voltage that is induced.
  5. The area of the coil A: The surface area of the coil and induced emf are directly proportional
  6. The angular speed of the coil ω: The angular speed of the coil is directly proportional to the voltage that is induced.

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