A cylindrical space of radius \( R \) is filled with a uniform magnetic induction \( B \) parall...

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A cylindrical space of radius \( R \) is filled with a uniform magnetic induction \( B \) parallel to the axis of the cylinder. If \( B \) changes at a constant rate, the graph showing the variation of induced electric field with distance \( r \) from the axis of cylinder is
(a)
(c)
(b)
(d)
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