If a constant current is flowing through a coil, then the flux through that coil will become constant. In such types of arrangements, the electromotive force (emf) induced in the coil will be:
Correct answer: B. Zero
- A. Self-Inductance
- B. Zero
- C. Mutual-Inductance
- D. Back EMF
Explanation
The emf induced in a circuit is directly proportional to the time rate of change of the magnetic flux through the circuit. And if there is no change in flux so the induced emf is zero.
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About Electromagnetism
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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