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Two identical pith balls, each carrying ...

Two identical pith balls, each carrying charge q, are suspended from a common point by two strings of equal length l. Find the mass of each ball if the angle between the strings is `2theta` in equilibrium.

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`Tcostheta=(mg), Tsintheta=F_e `
` Then, tantheta =F_e/(mg) `
` F_e=(1) /(4piepsilon_0)q^2/(2lsintheta)^2 `
` :. m=(q^2cottheta)/(16piepsilon_0gl^2sin^2theta)`.
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HC VERMA-ELECTRIC FIELD AND POTENTIAL-Exercises
  1. Two pith balls carrying equal charges are suspended from a common poin...

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  2. Two small spheres, each having a mass of 20 g, are suspended form a co...

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  3. Two identical pith balls, each carrying charge q, are suspended from ...

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  4. A particle having a charge of 2.0xx10^(-4) C is placed directly below ...

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  5. Two particles A and B having charges 8.0 xx 10 ^(-6) C and -2.0 xx 1...

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  6. Two identically charged particles are fastened to the two ends of a sp...

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  7. Two particles, each having a mass of 5 g and charge. 1.0 xx 10^(-7) C...

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  8. A particle A having a charge of 2.0xx 10^(-6) C and a mass of 100 g i...

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  9. Two particles A and B having equal charges are placed at distance d ap...

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  10. Two particles A and B , each carrying charge Q are held fixed with a s...

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  11. Two particles A and B , each carrying charge Q are held fixed with a s...

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  12. The electric force experienced by a charge of 1.0xx10^(-6) C is 1.5 xx...

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  13. Two particles A and B having charges of +2.00 xx 10^(-6) C and of - 4....

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  14. A Point charge produces an electric field in room. What is its direct...

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  15. A water particle of mass 10.0 mg and having a charge of 1.50 xx 10^(-6...

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  16. Three identical charges, each having a value 1.0 xx10^(-8)C, are place...

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  17. Positive charge Q is distributed uniformly over a circular ring of rad...

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  18. A rod of length L has a total charge Q distributed uniformly along its...

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  19. A 10 cm long rod carries a charge of +50 muC distributed uniformly al...

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  20. Find the point on the X-axis which is equidistant from (2, -5) and (-2...

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