When magnetic flux changes, an induced emf is produced, which generates electric field in the region. The strength of the electric field depends upon:
Correct answer: C. Rate of change of magnetic flux
- A. The magnetic flux
- B. Change of magnetic flux
- C. Rate of change of magnetic flux
- D. None of these
Explanation
The strength of the electric field induced by a changing magnetic flux depends on a couple of factors:1. Rate of change of magnetic flux: The faster the magnetic flux changes, the greater the induced electromotive force (emf) and, consequently, the stronger the electric field generated in the region.2. Area enclosed by the changing magnetic flux: A larger area enclosed by the changing magnetic flux leads to a stronger induced emf and a stronger electric field.So, the strength of the electric field induced by a changing magnetic flux is directly related to the rate of change of magnetic flux and the area through which the flux passes.
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