NEET Physics Faraday's Laws MCQ Question
Which of the following statements about Faraday's Laws of electromagnetic induction is correct?
The induced emf is directly proportional to the rate of change of magnetic flux through a coil.
Induced current can be produced without any relative motion between the magnetic field and the coil.
The direction of the induced current is always in the same direction as the change in magnetic flux.
Increasing the area of the coil does not affect the induced emf in any way.
Correct Answer
Detailed Explanation
Statement A is correct as it summarizes the relationship between induced emf and the rate of change of magnetic flux, as indicated by the equation ε = -dΦ/dt. Statement B is misleading since while stationary coils can induce emf, it typically requires a change in magnetic flux. Statement C contradicts Lenz's Law, and statement D is incorrect because increasing the area can increase magnetic flux and thus affect induced emf.
Found an issue with this question?
Related Questions
More from Faraday's Laws
More from
The flux linked with a circuit is given by ϕB = t² + 2. The graph between time (X⁻axis) and induced emf (Y⁻axis) will be a
What is the induced emf generated across a conductor moving with speed v in a magnetic field B known as?
What does Lenz's law state about the polarity of induced emf?