Three charges are arranged along a straight line as follows: q1 --- q2 --- q3. The distance between charges q1 and q2 is 25.0cm, and that between q2 and q3 is d cm. The charges are as follows: q1= +14.7uC, q2=-6.73uC, q3=+4.1uC. What is d (in cm), so that q3 (note that this time this is not q2!) experience no net electrostatic force?

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Q: у axis q2 q1

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.