10. Three charges are arranged as follows: 5.2 +6.4 8.1 ImC mC mC 1.5 m 2.0 m Wh

Question

10. Three charges are arranged as follows: 5.2 +6.4 8.1 ImC mC mC 1.5 m 2.0 m What is the instantaneous electrostatic force on the +6.4 mC charge? 11. Three charges are arranged as follows: +7.6 mC 0- 210 O +1.1 mc 2.5 mc 0.65 m 0.65 m What is the instantaneous electrostatic force on the +7.6 mC particle? 12. Consider the following electrostatic field: a. Is particle B positively or negatively charged? b. If the magnitude of particle A's charge is 1.0 C, what is the magnitude of particle B's charge? c. Where should a freely-moving charged be placed so that it experiences the least acceleration?

Explanation / Answer

12.

(A) lines terminates at B. (into B)

hence B is negatively charged.

(B) |qA| / |qB| = 2 / 8

qB = 4 C

(C) where density of line is least.

left of A.

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