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A uniform magnetic field exists in a cir...

A uniform magnetic field exists in a circular region of radius R centrad at O. The field is perpendicular to the plane of paper and is strength varies with time as `B=B_(0)t`. Find the induced electric field at a distance r from the centre for (i)`r lt R`, (ii) `r gt R`. Also, plot a graph between `|E|` and r for both the cases.

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