09.47: A spatially uniform electric field is constrained within
f(z y1:hxoq. zm5o7zo the circular region of radius R as shown. The fie
.zh(zof m :xqyo71oz5ld is directed out of the plane of the page and its strength is increasing uniformly in time. What is the direction of the force on the proton in the figure if the proton is moving to the right at the instant shown? Ignore gravity