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A charge Q is placed at each of the two ...

A charge Q is placed at each of the two opposite corners of a square of side a.A charge is placed at each of the other two corners. (a) if the reultant electrical force system of charges? What is the signification of its negative potential energy?

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The correct Answer is:
`Q=-2sqrt2q,1/(4piepsi_0)*(-7q^2)/(sqrt2Q)` they form a stable system
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NN GHOSH-ELECTRIC FIELD AND POTENIAL-EXERCISE-B
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  2. Two identical positive charges are placed at the diagonally opposite c...

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  3. A charge Q is placed at each of the two opposite corners of a square ...

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  4. A thin copper ring of radius a is charged with q units of electricity....

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  5. A an electron is placed at the centre of the copper ring of problem 37...

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  6. A thin half- ring of radiusb 20 cm is uniformly charged with a tot...

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  7. A thin nonconducting ring of radius r has a linear charge density q=q0...

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  8. A thin wire ring of radius r has an electric charge q. What is the ten...

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  9. A charge +Q is uniformly distributed over a thin ring of a radius R. F...

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  10. Three identical particals, each of charge Q=0.5 mu C and mass m=7.5xx1...

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  11. Two small similar balls of mass m are hung by silk threads of length l...

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  12. Calculate the field due to a uniformly charged straight conductor of ...

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  13. Two positive charges q(1) and q(2) are located at points with radius v...

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  14. Point charges q and -q located at the vertices of a square with diagon...

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  15. Two co-axisal rings, each of radius R, are separated by a small distan...

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  16. Find the potential phi of an electric field given by vecE=a(y hati+x h...

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  17. Calculate the potential at a point on the perpendicular bisector of un...

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  18. A ring of radius R carries a charge q uniformly distribited over it. A...

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  19. Electric charge q is uniformly distributed in a spherical space from w...

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  20. A copper rod AB of length l is rotated about one end A with a constan...

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