By changing the current through the same coil, an emf is induced in it, the process is known as:
Correct answer: C. Self induction
- A. Rectification
- B. Mutual induction
- C. Self induction
- D. Simple induction
Explanation
Self-induction is the correct answer because it involves the generation of an electromotive force (emf) within the same coil when there is a change in the current flowing through it. This is due to the coil's own magnetic field interacting with itself. Rectification is unrelated to this process as it deals with AC to DC conversion. Mutual induction requires two different coils affecting each other. Simple induction describes a general case of emf generation without specifying the mechanism of self-interaction in a single coil.
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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