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Two small particles charged with equal p...

Two small particles charged with equal positive charges Q each, are fixed apart at a distance 2a. Another small particle having a charge q lies midway between the fixed charges. Show that
(i) For small displacement (relative to a) along line joining the fixed charges, the middle charge executes SHM'if it is +ve and
(ii) For small lateral displacement, it executes SHM ifit is-ve. Compare the frequencies of oscillation in the two cases

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PHYSICS GALAXY - ASHISH ARORA-ELECTROSTATICS-Unsolved Numberical Problems
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  3. The electric intensity Eat a point on the axis ofa ring of radius a at...

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  6. A solid conducting sphere of radius R is placed in a uniform electric ...

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  8. Two short dipoles phat(k) and P/2 hat(k) are located at (0,0,0) & (1m,...

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  9. Two long straight parallel wires carry charges lambda(1) and lamda(2) ...

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  12. Three identically charged, small spheres each of mass m are suspended ...

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  13. Two horizontal parallel conducting plates are kept at a separation d =...

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  14. A small cork ball A of mass m is suspended by a thread of length I. An...

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  16. Two concentric spheres of radii R and 2R are charged. The inner sphere...

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  17. A charged particle of radius 5xx10^(-7)m is located in a horizontal el...

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  18. Two small balls having the same mass and charge and located on the sam...

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  19. What is the percentage change in distance if the force of attraction b...

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  20. two concentric rings of radii r and 2rare placed with centre at origin...

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