Obtain an expression for capacitance of a paral lel plate capacitor

Write down the expression for the capacitance of a spherical capacitor?

Observe the relationship between the first two terms and fill in the blanks. Capacitance of an isolated spherical conductor: C = 4piepsilon_0r Capacitance of the parallel plate capacitor :___________.

Derive an expression for capacitance of the above capacitor with the dielectric slab in between the plates

What are the factors on which the capacitance of a parallel plate air capacitor depends?

Using the above expression, show that energy density of a parallel plate capacitor is [1/2(epslion_0 E^2)] where .E. is electric field between parallel plates.

Obtain the expression for effective capacitance, when three capacitors C_1 , C_2 and C_3 are connected in series.

Write down the expression for capacitative reactance of a capacitor.