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In the electric field show in the figure...

In the electric field show in the figure
the electric field lines on the left have twice the separation as that between those on the right. If the magnitudes of the fields at point A is 40NC^(-1), calculate the force experienced by a proton placed at point A . Also find the magnitude of electric field at the point B.

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MODERN PUBLICATION-ELECTRIC FIELD-EXERCISE
  1. An electric dipole is held in a uniform electric field Using suitable ...

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  2. Draw a labelled diagram showingt an electric dipole making an angle th...

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  3. In the electric field show in the figure the electric field lines ...

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  4. Calculate the magnitude and direction of the electric field. Which kee...

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  5. A water particle of mass 10 mg and having a charge of 1.5 xx 10^-6C st...

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  6. An electron above the earth is balanced by the gravitational force and...

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  7. How many electrons should be removed from a coin of mass 1.6 g, so tha...

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  8. Find the time taken by a particle of mass 10^-18 kg and carrying a cha...

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  9. An electron is released with a velocity of 5xx10^6ms^-1 in an electric...

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  10. A charged particle of mass 1 g is suspended through a silk thread of l...

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  11. Two points charges of +20 muC and + 80 muC are plaed 18 cm apart. Find...

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

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

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

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

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

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

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

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

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

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