Questions
A spherical drop of mercury of diameter 8 cm is charged to a potential of 12 volt. The drop is broken into 8 equal drops, then potential of each drop is
detailed solution
Correct option is D
8×43πr3=43π×823⇒r=2 cmIf Q be the charge on the larger drop, then charge on each smaller drop is Q/8.Now, 14π∈o.Q4=12⇒Q=48×4π∈o coul.∴V'=14π∈o×Q/82=116×48×4π∈o4π∈o=3 voltTalk to our academic expert!
Similar Questions
Two spherical shells are as shown in figure.
Let r be the distance of a point from their common centre. Then, match the following columns and mark the correct choice from the given codes.
Column-I | Column-II | ||
i. | Electric field for r < R1 | p. | is constant for q2 and vary for q1 |
ii. | Electric potential for r < R1 | q. | is zero for q2 and vary for q1 |
iii. | Electric potential for R1 < r <R2 | r. | is constant |
iv. | Electric field for R1 < r <R2 | s. | is zero |
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