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Shown in the figure <b> four point char...

Shown in the figure four point charges at the corners of a square of side 2 cm. Find the magnitude and direction of the electric field at the centre O of the square, if `Q = 0.02 muC` Use `1/(4piepsilon_0) = 9 xx 10^9 N m^2 C^-2`

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MODERN PUBLICATION-ELECTRIC FIELD-EXERCISE
  1. Two points charges of +20 muC and + 80 muC are plaed 18 cm apart. Find...

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  2. Two point charges of - 16 muC and + 80 muC are placed 8 cm apart. Find...

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  3. Shown in the figure <b> four point charges at the corners of a square...

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  4. Three charges, each equal to q, are placed at the three corners of a s...

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  5. Four charges +q'+q' - q and -q are placed respe tively at the four cro...

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  6. ABC is an equilateral triangle of side 5 cm. Charges of +60statC and -...

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  7. Two point charges of 2muC but opposte in sign are placed 10 cm apart. ...

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  8. Two charges eacdh of 0.1muC but opposite in sign are 1 mm apart. What ...

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  9. Two charges +-10muC are placed 5.0 mm apart. Determine the electric fi...

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  10. Two charges +-10muC are placed 5.0 mm apart. Determine the electric fi...

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  11. The electric field at a point on the axial line at a distance of 10 cm...

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  12. An electric dipole of dipole moment 4xx 10^-5C m is placed in a unifor...

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  13. An electric dipole with diple moment 4xx10^-9C m is aligned at 30^@ wi...

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  14. A dipole consisting of an electron and a proton separated by a distanc...

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  15. An electric dipole, when held at 30^@ with respect to a uniform electr...

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  16. An electric diple is placed at angle of 60^@ with an electric field of...

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  17. An electric dipoel consists of two equal and opposite charges placed 2...

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  18. A copper ball of density 8.6 g cm^-3 cm in diameter is immersed in oil...

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  19. A charge of 4xx10^-9C is distributed uniformly over the circumference ...

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  20. A dipole consists of two charges +10muC and -10muC separated by a cert...

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