Unformatted text preview: Physics 2220.003 Name: Key Spring 2007
Quiz 2 A line of charge lying on the x axis starts at x = +x0 and extends to positive inﬁnity. The
linear charge density is A = loam/x, where 2.0 > 0. lo and x0 are constants. a) (3 points) Determine the direction of the electric ﬁeld at the origin. A
Fieioi is ‘m *2 direction
b) (7 points) Determine the magnitude of the electric ﬁeld at the origin. dar).
0 X0 (1:: \E.\=~§‘Es§% wkm-olofrldv $524,. Wt... ...
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- Spring '00