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Four charges, each of value q, are place...

Four charges, each of value q, are placed at the four corners of a square of side a. What is the potential at the centre of the square

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The correct Answer is:
`(sqrt2.q)/(pi epsi_(0)a)`
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NEW JOYTHI PUBLICATION-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Practice Problems For Self Assessment
  1. Calculating the work done in eV in carrying a charge +e Coulomb throug...

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  2. Four charges, each of value q, are placed at the four corners of a squ...

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  3. A proton of charge 1.6 xx 10^(-19)C" and mass "1.67 xx 10^(-27)kg is a...

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  4. 64 charged water droplets each with a diameter 1 mm and charge 2 xx 10...

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  5. Two charges 6muC and 3muC are kept 9 cm apart in free space. Calculate...

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  6. n' small drops of same size are charged to a potential V. The drops ca...

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  7. Three charges 6muC are fixed at the three vertices of an equilateral t...

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  8. Potential at a point by the relation V=4x^(2) +5y^(2)+6z^(2). Calculat...

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  9. Assuming the Earth to be a spherical conductor of radius 6380 km, calc...

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  10. Three capacitors of capacity 2muF, 4muF and 6muF are connected first i...

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  11. Three capacitors each of capacity 10muF are connected in parallel. Thi...

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  12. A p.d. of 280V is applied to 2muF and 5muF capacitors in series. Find ...

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  13. Calculate the charge on each capacitors shown in figure below.

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  14. Calculate the effective capacitance between A and B.

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  15. Two metal plates 50cm xx 50cm have a separation of 2cm. The metal plat...

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  16. Find the capacitane value of C if the equivalent capacity between A an...

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  17. Calculate the effective capacitance combination given below:

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  18. Match the following

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  19. Calculate the effective capacity in the following combination. Given C...

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  20. An isolated conducting sphere of radius 6cm has a charge of 1.5 muC. C...

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