An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of the electrical field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in through the same vertical distance h. The time of fall of the electron, in comparison to the time fall of the proton is-

smaller

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5 times greater

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10 times greater

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equal

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The correct option is A smaller
smaller

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Q. An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in it through the same vertical distance h. The time of fall of the electron, in comparison to the time of fall of the proton is?

Q. An electron falls from rest through a vertical distance

h

in a uniform and vertically upward directed electric field

E

. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in it through the same vertical distance

h

. The time of fall of the electron as compared to the time of fall of the proton is

Q. An electron falls from rest through a vertical distance

h

in a uniform and vertically upward directed electric field

E

. The direction of electric field is now reversed, keeping its magnitude the same. A proton is allowed to fall from rest in it through the same vertical distance

h

. The time of fall of the electron as compared to the time of fall of the proton is

An electron falls through a distance of $1.5 c m$ in a uniform electric field of magnitude $2 \times 10^{4} N / C .$ Now the direction of the field is reversed keeping the magnitude unchanged and a proton falls through the same distance. Compute the time of fall in each case, neglecting gravity.

Q. An electron initially at rest falls a distance of

1.5 c m

in a uniform electric field of magnitude

2 \times 10^{4} N / C

. The time taken by the electron to fall this distance is

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The correct option is A smallersmaller

The correct option is A smaller
smaller