Two point charges lie on the x axis. A charge of 9.0 μC is at the origin, and a charge of -5.5 μC is at x = 10 cm . A) At what position x would a third charge q3 be in equilibrium? B) Does your answer to part A depend on whether q3 is positive or negative? Explain.
(A) As both, the charges are opposite in nature and the third
charge can't be put between the two charge as the force never be
balanced out. Also, the +ve charge is higher in magnitude hence
third the charge must be at large distance compared to the negative
charge. Let the distance of the third charge is then
(B) No. Answer will not depend on the nature of because force due
to
and
on
will always be
opposite to each other irrespective of nature of charge
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