An irregular conductor carries a surface charge density of -6.75 C/m2 at and in the vicinity of a point P on the surface. An electron is released just above P outside the conductor.
What are the magnitude and direction of its acceleration the instant after it is released? (0 = 8.85 10-12 C2/N m2, e = 1.60 10-19 C, mel = 9.11 10-31 kg)
Question 2
A neutral hollow spherical conducting shell of inner radius 1.00 cm and outer radius 3.00 cm has a +2.00-C point charge placed at its center. Find the surface charge density
(a) on the inner surface of the shell.
(b) on the outer surface of the shell.
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