Two point charges in free space are Q1=10nC at (5,0,0) and Q2= 25nC at (-5,0,0). Where shouldQ3=20nC be located such that the force on Q3 is zero

Question

Two point charges in free space are Q1=10nC at (5,0,0) and Q2= 25nC at (-5,0,0). Where shouldQ3=20nC be located such that the force on Q3 is zero
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Solution 1

The force on Q3 due to Q1 and Q2 must be equal and opposite for the net force to be zero.

Let's consider two possible positions for Q3: one along the line joining Q1 and Q2 to the right of Q1 (position A) and the other to the left of Q2 (position B).

  1. Position A (x,0,0) where x > 5:

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Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
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