Question
Physics Question on electrostatic potential and capacitance
Four metal conductors having different shapes a) a sphere b) cylindrical c) pear d) Lightening conductor are mounted on insulating stands and charged. The one which is best suited to retain the charge for a longer time is
A
a
B
b
C
c
D
d
Answer
a
Explanation
Solution
The sphere will retain the charge for longer time, because in case of spherical metal conductor, the charge quickly spreads uniformly over the entire surface.