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An electron is projected with an initial...

An electron is projected with an initial velocity of `10^(7)ms^(-1)` into an electric field between two parallel plates 1 cm apart. The electron enters the field at a point midway between the plates. If the electron just misses the positivity charged plate as it emerges from the field, find the magnnitude of the electric density between the plates. (Length of each plate is 2 cm, mass of electron=`9xx10^(-31)`kg and charge of electron `=1.6xx10^(-19)`C)

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NN GHOSH-ELECTRIC FIELD AND POTENIAL-EXERCISE
  1. Two charges of +4 xx 10^(-7)C and -8 xx 10^(-7)C are 20cm apart. Find ...

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  2. A negative charge q(1)=50 xx 10^(-9)C and a positive charge q(2)=25 xx...

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  3. Two pith balls,, each weighting 10mg are suspended from the sam point ...

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  4. A ball of mass m=0.5kg is suspended by a thread and a charge q=0.1muC ...

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  5. An alpha paritcle carrying an electric charge 3.2 xx 10^(-19)C is at a...

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  6. A charges of 50 xx 10^(-9)C is placed at a point P. What amount of wor...

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  7. A small uncharged sphere is placed in contact with an equal and simila...

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  8. An electron is projected with an initial velocity of 10^(7)ms^(-1) int...

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  9. A positive point charge 50mu C is located in the plane xy at a point w...

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  10. Charges of +q,+2q,+q and -q, are placed at the cornersof a square ABCD...

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  11. Two small equal spheres carrying unlike and unequal charges are placed...

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  12. Two small conducters 0.3 m apart carry 10xx10^(-9)C and 20xx10^(-9)C o...

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  13. An electron of mass 9xx10^(-31) kg carrying 1.6xx10^(-19)C starts from...

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  14. Calculate the radius of a drop of water which remains suspended in the...

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  15. ABCD is a square of side 0.2 M. Positive charges 2xx10^(-9)C,4xx10^(-9...

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  16. Two charges +2xx10^(-9)C and -8xx10^(-9)C are placed 0.3 M apart in ai...

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  17. Two charges 4 cm apart repel each other with a force of 2xx10^(-2)N in...

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  18. Charges of magnitude (1)/(2),(2)/(3),(3)/(3) and (4)/(3) nanocolumb ar...

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  19. Four small spheres carrying +(5)/(3),+(10)/(3),+(5)/(3) and -(5)/(3)nC...

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  20. An electron is liberated from a hot filament and attracted by an anode...

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