NEET Physics Faraday's Laws MCQ Question
Which of the following statements about Faraday's Laws of electromagnetic induction is correct?
The induced emf in a coil is directly proportional to the number of turns in the coil.
The induced emf is unaffected by the change in magnetic flux through the coil.
A stationary coil can induce emf without any changing magnetic field.
The direction of induced current is independent of the motion of the magnet relative to the coil.
Correct Answer
Detailed Explanation
According to Faraday's laws, the total induced emf in a coil is given by the formula ε = -N(dΦ/dt), indicating that increasing the number of turns (N) increases the induced emf. Option B is incorrect as induced emf is dependent on changes in magnetic flux, and option C is incorrect because relative motion or change in magnetic field is necessary for induction. Option D is incorrect as the direction of current does depend on the relative motion.
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