Physics · Electrostatics
Two pith balls carrying equal charges are suspended from a common point by strings of equal length, and the equilibrium separation between them is r. Now, if the strings are rigidly clamped at half the original height, the new equilibrium separation between the balls becomes:
- 12r3
- 22r√3
- 3r3√2✓
- 4(1 / √2)2
Correct answer
r3√2
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