Physics · Electromagnetic induction: Faraday's law, induced emf and current, Lenz's law, eddy currents, self and mutual inductance
Whenever, current is changed in a coil, an induced e.m.f. is produced in the sam
Whenever, current is changed in a coil, an induced e.m.f. is produced in the same coil. This property of the coil is due to
- A. mutual induction
- B. eddy currents
- C. self induction
- D. hysteresis
Step-by-step solution
When the current in a coil changes, the magnetic flux linked with the coil itself changes, inducing an emf in the same coil. This phenomenon is known as self-induction, as opposed to mutual induction where the emf is induced in a different coil. Eddy currents are induced currents in a conductor due to changing magnetic field, and hysteresis refers to the lag in magnetization of a ferromagnetic material. Therefore, the correct answer is self induction.
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