Induced emf in a loop is not concentrate in a point but distributed in the whole loop.

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CGP EDU Academic Team · Accepted Answer

The correct answer is A. Explanation:  Induced electromotive force (emf) arises due to a changing magnetic flux through a loop according to Faraday's law of electromagnetic induction.   Step 1: Faraday's law states that the induced emf ($ \mathcal{E} $) in a closed loop is equal to the negative rate of change of magnetic flux ($ \Phi_B $) through the loop:  $ \mathcal{E} = -\frac{d\Phi_B}{dt} $ Step 2: The magnetic flux ($ \Phi_B $) is defined as the product of the magnetic field ($ B $) and the area ($ A $) through which it passes, adjusted by the cosine of the angle ($ \theta $) between the field lines and the normal to the surface:  $ \Phi_B = B \cdot A \ \Phi_B = B \cdot A \cdot \cos(\theta) $ Step 3: If the magnetic field changes over time or if the loop's orientation with respect to the field changes, the total emf induced is distributed around the entire loop rather than being concentrated at a single point.  Step 4: This distribution leads to varying electric fields within the loop, influencing the flow of current.  Therefore, the statement is correct.

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