Question

Three particles are fixed on an *x* axis. Particle 1 of
charge *q*_{1} is at *x* = -*a* and
particle 2 of charge *q*_{2} is at *x* =
+*a*. If their net electrostatic force on particle 3 of
charge *Q* is to be zero, what must be the ratio
*q*_{1}/*q*_{2} when particle 3 is at
**(a)** *x*= +0.405*a* and
**(b)** *x* = +1.95*a*?

Answer #1

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Three particles are fixed on an x axis. Particle 1 of
charge q1 is at x = -a and
particle 2 of charge q2 is at x =
+a. If their net electrostatic force on particle 3 of
charge Q is to be zero, what must be the ratio
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