UCLA
PHYSICS 1B -
Discussion Worksheet 6
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Physics 1B Discussion Worksheet 6 r a2 y2 A W Fx Fy kQq x2 kQqa 2x3 Problem 1 Positive charge Q is distributed uniformly on a thin rod with length a lying on the y axis from y 0 to y a A negative point charge q is placed on the x axis distance x from the origin Q x a a Calculate the electric eld produced by the rod at any point on the x axis b Calculate the electric force that the rod exerts on the point charge c Show that if x a the components of the force you found in b are 1 2 Interpret and explain these results E E x Eyy a dy Ndy Ex kxcost Ky Yen de zE 65F F k I xY 1 Cxx a fx x Fy kE 1 1 yyy 1 2 2 1 l r y ka Fyrt when Xia rod aut as a pointcharge
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