For inducing emf in a coil the basic requirement is that:
Correct answer: D. Both (b) and (c) are true
- A. Flux should link the coil
- B. Change in flux should link the coil
- C. Coil should form a closed loop
- D. Both (b) and (c) are true
Explanation
The two conditions for inducing an EMF in a coil are that there must be a change in the magnetic flux linking the coil and that the coil must be a closed loop, allowing the induced current to flow.
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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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