An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The direction of electric filed 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
Held on 30 Apr 2018 · Verified 9 Jul 2026.
10 times greater
5 times greater
Smaller
Equal
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Two point charges +2μC and -2μC are placed 10 cm apart. The electric field at the midpoint is:
A 2 amp current is flowing through two different small circular copper coils having radii ratio $1: 2$. The ratio of their respective magnetic moments will be
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