12.50: A spatially uniform electric field is constrained within t
xqcm l /)gu rim n3s/:0:8okpmhe circular region of radius R as shown. The field is directed out of the plane of the page and its strength is decreasing uniformly with time. Which one of the following choices best represents the direction of the Lore
xo m/l qk ):8mgm0n3irucs/:pntz force on the electron at the instant shown in the figure when the electron is moving up the plane of the page? Ignore gravity