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| 1. |
Verify this result for the simple configuration of two charges of the same magnitude and sign placed at a certain distance apart. |
| Answer» Solution :In this case the neutral point is the mid-point of the line joining the two charges. If the free CHARGE is moved slightly from its position along the line connecting the charges, the RESTORING force will bring the charge BACK to its ORIGINAL position. But if it moved along a direction normal to the line, then it will move further due to the EFFECT of the resultant force . Thus the free charge is not in stable equilibrium. | |