Quick Refresher This Refresher from 30.3 Induced Electric Fields will help you get familiar with prerequisite concepts The figure below shows a circular region of radius R = 0.100 m with a time-varying magnetic field of magnitude B = bt which points into the page. If b = 3.11 T/s, what is the magnitude of the electric field at r = 0.606 m. i V/m R E E B

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