The graph gives the magnitude $B(t)$ of a uniform magnetic field that exists throughout a conducting loop, perpendicular to the plane of the loop. Rank the five regions of the graph according to the magnitude of the emf induced in the loop, greatest first

Question

Dr. Abubacker · Accepted Answer

(b) Induced emf $e = A\frac{dB}{dt}$
$i.e.,e \propto \frac{dB}{dt}$ (= slope of $B - t$ graph)
In the given graph slope of $AB >$ slope of $CD,$ slope in the $'a'$ region $=$ slope in the $'c'$ region = 0, slope in the $'d'$ region = slope in the $'e'$ region $
eq 0$. That’s why $b > (d = e) > (a = c)$

Q. The graph gives the magnitude $B(t)$ of a uniform magnetic field that exists throughout a conducting loop, perpendicular to the plane of the loop. Rank the five regions of the graph according to the magnitude of the emf induced in the loop, greatest first

Explanation

Reviewed by Dr. Abubacker

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