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(試題疑義:無答案)49. Three charge particles are situated as illustrated. Particle 1 and 2 are fixed, while particle 3 is free to move. If there is no net force
on the particle 3, what is the charge ratio q2/q1?
(A) 2
(B) 2/3
(C) 3
(D) –2/3
(E) –2
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統計: A(1), B(2), C(0), D(7), E(0) #2356610
統計: A(1), B(2), C(0), D(7), E(0) #2356610