Q57
General SciencePhysics
The direction of induced e.m.f. during electromagnetic induction is given by
- a.Faraday's Law.
- b.Lenz's Law.
- c.Maxwell's Law.
- d.Ampere's Law.
Answer: (B) Lenz's Law.
Lenz's law states that the induced e.m.f. acts in a direction that opposes the change in flux causing it, so it gives the direction. Faraday's law gives the magnitude of the induced e.m.f., and Ampere's and Maxwell's laws relate currents and fields.