" The capacitance of a sphere of radius "10cm" .situated in air is approximately "

The volume of a sphere of radius 10.5 cm is

Find the capacitnace of a conducting sphere of radius 10 cm situated in air. How much charge is required to raise it to a potential 1000 volt?

The approximate surface area of a sphere of radius 4.01 cm is

The approximate surface area of a sphere of radius 6.01 cm is

The capacitance of an isolated conducting sphere of radius R is proportional to

Find the volume and surface area of a sphere of radius 10.5cm.

What should be the charge on a sphere of radius 4 cm, so that when it is brought in contact with another sphere of radius 2 cm carrying charge of 10 mu C , there is no transfer of charge from one sphere to other ?

The capacitance of a metallic sphere will be 1muF , if its radius is nearly