e insulator sheets lie in parallel planes, separated by a constant distance of s
ID: 1870307 • Letter: E
Question
e insulator sheets lie in parallel planes, separated by a constant distance of sheet 2. Two infinitely large 2.0cm. They have equal, but opposite su Consider the positive sheet to be on the left. rface charge densities, of magnitude 4,0pC1 nce in electric potential between the region to the left of both plates, and a) What is the difference po the region to the right of both plates? bì If an electron were to travel from the far left, to the far right, passing through both sheets unobstructed (perhaps there is a small hole), how much kinetic energy would it gain or lose?Explanation / Answer
2. (A) electric field in between the plates.
E = sigma / e0
E = (4 x 10^-6) / (8.854 x 10^-12)
E = 451773.2 N/C
delta(V) = E.d = (451773.2)(0.02)
= 9035.5 Volt
(B) lose or gain of KE = q deltaV
= (1.6 x 10^-19)(9035.5)
= 1.45 x 10^-15 J .......Ans
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