9. As shown in figure, a circular loop of wire has a radius R. A magnetic field is directed into the page; its magnitude

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9 As Shown In Figure A Circular Loop Of Wire Has A Radius R A Magnetic Field Is Directed Into The Page Its Magnitude 1 (27.11 KiB) Viewed 34 times

9. As shown in figure, a circular loop of wire has a radius R. A magnetic field is directed into the page; its magnitude is given by B(r,t)-Ar²t2, where r is the distance to the center of the loop (origin), and A is a constant. At time t, what is the magnitude of the emf induced in the loop? [10% ] xx ** R xxxx xx B R