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A uniform magnetic field B exists in a c...

A uniform magnetic field B exists in a cylindrical region, shown dotted in. The magnetic field increases at a constant rate `(dB)/(dt)` Consider a circle of radius r coaxial with the cylindrical region. (a) find the magnitude of the electric field E at a point on the circumference of the circle. (b) Consider a point P on the side of hte square circumscribing the circle. Show that the component of the induced electric field at P along ba is the same as the magnitude found in part(a).

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