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A charged particle of mass `m` and charge `q` is released from rest in an electric field of constant magnitude `E`. The kinetic energy of the particle after time `t` is

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Straight line , `sqrt((mg)^2 + (qE)^2)/(2m) t^2`, parabola
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MODERN PUBLICATION-ELECTRIC CHARGES AND FIELDS -Practice Problems
  1. A very small particle of mass m and charge q is given an initial speed...

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  2. A small ball of mass m and charge q is suspended through a string in u...

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  3. A charged particle of mass m and charge q is released from rest in an ...

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  4. Mass of bob of a pendulum is m and it is suspended from the ceiling in...

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  5. A block of mass m is placed on a frictionless horizontal table. Consid...

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  6. A charge +q is placed at a distance 'd' from the centre of the uncharg...

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  7. There is one charged tiny spherical oil drop and the magnitude of elec...

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  8. A tiny spherical oil drop carrying a net charge q is balanced in still...

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  9. An electric dipole consists of two charges of pm0.5 muC, kept at dista...

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  10. Two charged particles of charges +0.1 muC and -0.1 muC are kept on the...

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  11. Four point charges, +0.1 muC,-0.1 muC,-0.1 muC and +0.1 muC are kept a...

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  12. calculate the magnitude and direction of the torque acting on the comb...

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  13. Six point charges are arrange at the vertices of a regular hexagon of ...

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  14. Calculate the magnitude of electric field at the centre of a regular h...

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  15. Calculate the electric field at the centre of a cube, if seven of its ...

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  16. A proton is placed at a distance of 3 xx 10^(-9) m from the centre of ...

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  17. Two point charges +4 muC and -4 muC are place(at vertices P and Q resp...

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  18. An electric dipole experiences a torque of 10sqrt3 Nm, when placed at ...

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  19. A positive charge Q is uniformly distributed across a rod of length L....

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  20. Find the electric field intensity at the centre of a semi circular arc...

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