The electric potential of earth is taken zero. Why?
Important Questions on Capacitors and Dielectrics
Write formula for equivalent capacitance of a Series combination.
Write formula for equivalent capacitance of a parallel combination of capacitances .
When a medium of dielectric constant K is introduced between the plates of a parallel-plate capacitor, how do the capacitance change ?
When a medium of dielectric constant K is introduced between the plates of a parallel-plate capacitor, how do the PD between the plates change?
A parallel-plate capacitor having vacuum between the plates has capacitance C. What will be the capacitance When the distance d between the plates is doubled.
A parallel-plate capacitor having vacuum between the plates has capacitance C. What will be the capacitance When a sheet of thickness t and dielectric constant K is placed between the plates? (Assume r = d.)
