For the experiment shown below
Correct answer: D. there is a current in G just after S is opened or closed
- A. there is a steady reading G as long as Sis closed
- B. a motion emf is generated when S is closed
- C. the cuurent in the battery goes through G
- D. there is a current in G just after S is opened or closed
Explanation
Faraday's law of electromagnetic induction states that the magnitude of induced electromotive force (EMF) in a circuit is directly proportional to how rapidly the magnetic flux through the circuit changes over time. This relationship is expressed mathematically as EMF = -dΦ/dt, where Φ represents the magnetic flux.Option (d), stating "None of these," is inaccurate because the rate of change of magnetic flux is indeed the determining factor according to Faraday's law.
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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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