Self induction is also called ________.

  1. Back e.m.f.
  2. Voltage
  3. E.m.f.
  4. Eddy currents

Answer (Detailed Solution Below)

Option 1 : Back e.m.f.
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Detailed Solution

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CONCEPT:

  • Self-induction: The phenomenon by which an opposing induced e.m.f. is produced in a coil due to change in the magnetic flux or current associated with the coil is called self-induction.
  • Eddy Current: When a changing magnetic flux is applied to a bulk piece of conducting material then circulating currents is called eddy currents are induced in the material.

EXPLANATION:

  • Since, the induced e.m.f. opposes the applied voltage, so the self-induction is called back e.m.f. Hence option 1 is correct.
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