List of top Physics Questions on electrostatic potential and capacitance asked in JKCET

What will be the potential at the centre of the sphere when a hollow metal sphere of radius $ 10\, cm $ is charged such that the potential on its surface is $ 80\, volts $ ?
What is the total capacitance of the combination when $ 3 $ capacitors each of capacitance $ 9 \,pF $ are connected in series?
$ n $ identical capacitors are joined in parallel and charged to a potential $ V $ . The charged capacitors are disconnected and then connected in series using insulating handles such that the positive plate of one is connected to the negative plate of the other. The potential difference across the free plates of the combination is
A $ 400\,pF $ capacitor is charged by a $ 100\,V $ supply. How much electrostatic energy is lost in the process of disconnecting from the supply and connecting another uncharged $ 400\,pF $ capacitor?
A $ 15\,pF $ capacitor is connected to a $ 60\,V $ battery. How much electrostatic energy is stored?
If the equivalent capacitance between $P$ and $Q$ of the combination of the capacitors shown in figure below is $ 30\,\mu \,F $ , the capacitor $C$ is
Charges $5 \mu C$ and $10 \mu C$ are placed 1 m apart. Work done to bring these charges at a distance 0.5 m from each other is $(k = 9\times 10^9 SI)$
A hollow metal sphere of radius 10 cm is charged such that the potential on its surface becomes 80 V. The potential at the centre of the sphere is
Energy stored per unit volume of a parallel plate capacitor having plate area $A$ and plate separation d when charged to a potential of $V$ volts is (air space in between the plates)
The capacitance $C$ of a capacitor is
Electric potential at the centre of a charged hollow metal sphere is
A dielectric of dielectric constant $K$ is introduced such that half of its area of a capacitor of capacity $C$ is occupied by it. The new capacity is
On increasing the plate separation of a charged condenser, the energy
The capacity of parallel plate capacitor in air and on immersing it into oil is $50\,\mu F $ and $ 110\,\mu F $ respectively. The dielectric constant of oil is
The energy stored in a condenser is in the form of