Define dielectric constant.

Value of dielectric constant of metal is.......

Write the formula of capacitance of capacitor having dielectric constant K = 2.

In the beginning the space between the plates of a parallel plate capacitor contains air and thereafter it is filled up with a medium of dielectric constant K. Then ......

A parallel plate capacitor is made of two circular plates separated by a distanc of 5mm and with a dielectric of dielectric constant 2.2 between them . When the electric field in the dielectric is 3xx10^(4) V/m the charge density of the positive plate will be close to :

For a capacitor the distane between two plates is 4x and the electric field between them is E_(0) . Now a dielectric slab having dielectric constant 3 and thickkness x is placed between them in contact with one plate. In this condition what is the p.d. between its two plates ?

The capacitance of a parallel capacitor is 5 mu F. When glass slab inserting between two plates, its potential difference becomes (1)/(8) the times hence the dielectric constant of a slab ......

Explain what would happen if in the capacitor given in Exercise, a 3 mm thick mica sheet (of dielectric constant = 6) were inserted between the plates, (a) while the voltage supply remained connected. (b) after the supply was disconnected.

The value of permittivity of vaccum is 8.85 xx 10^(-12) C^(2)N^(-1) m^(-2) and the dielectric constant of water is 81. So the permittivity of water will be……… C^(2)N^(-1)m^(-2) .

Two identically charged spheres are suspended by strings of equal length. The strings make an angle of 30^(@) with each other. When suspended in a liquid of density 0.8 g// c c the angle remains same. What is the dielectric constant of liquid. Density of sphere =1.6 g//c c

A parallel plate capacitor with air between the plates has a capacitance of 8 pF (1pF = 10^(-12) F). What will be the capacitance if the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant 6?