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A closed loop of vecB is produced by a c...

A closed loop of `vecB` is produced by a changing electric field. Does it necessarily mean that `vecE` and `dvecE//dt` are non-zero at all points on the loop and in the area enclosed by the loop?

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To address the question, we need to analyze the relationship between the changing electric field and the induced magnetic field in the context of electromagnetic theory. ### Step-by-Step Solution: 1. **Understanding the Concept**: - According to Faraday's law of electromagnetic induction, a changing electric field can induce a magnetic field. This is expressed mathematically as: \[ \vec{B} = -\frac{d\Phi_E}{dt} ...
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