Over a region of radius R, there is a spatially uniform magnetic field B. (See below.) At t = 0, B = 1.6 T, after which

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Over A Region Of Radius R There Is A Spatially Uniform Magnetic Field B See Below At T 0 B 1 6 T After Which 1 (43.28 KiB) Viewed 46 times

Over A Region Of Radius R There Is A Spatially Uniform Magnetic Field B See Below At T 0 B 1 6 T After Which 2 (18.7 KiB) Viewed 46 times

Over a region of radius R, there is a spatially uniform magnetic field B. (See below.) At t = 0, B = 1.6 T, after which it decreases at a constant rate to zero in 26 s. X x x В x X x x X X X X x X x x X A

(b) Assume that R = 14.0 cm. How much work (in )) is done by the electric field on a proton that is carried once clockwise around a circular path of radius 7.0 cm? (c) How much work in ) is done by the electric field on a proton that is carried once counterclockwise around a circular path of any radius r > R? (d) At the instant when B = 0.80 T, a proton enters the magnetic field at A, moving at velocity v (v = 5.4 x 10 m/s) as shown. What are the electric and magnetic forces (in N) on the proton at that instant? (Enter the magnitudes.) Felec N N Fmag = Additional Materials