What is dielectric strength.

What is dielectric ? Give two examples of dielectric .

What are dielectric materials? Give any two examples of it.

When electromagnetic waves enter the ionised layer of ionosphere, then the relative permittivity i.e. dielectric constant of the ionised layer

Derive an expression for capacitance of a parallel plate capacitor without a dielectric slab between the plates.

A parallel plate condenser with air as dielectric has capacity C_0 = (in_0 A)/(d) . A thin mica sheet of dielectric constant K and thickness is introduce near the first plate and then moved with constant velocity v towards the other plate . The capacity of the condenser will be

A capacitor has some dielectric between its plates and the capacitor is connected to a source. The battery is now disconnected and then the dielectric is removed. State whether the capacitance, the energy stored in it, the electric field, charges stored and voltage will increase, decrease or remain constant.

Dielectric constant is

Which of the following is NOT true about dielectric constant?

The capacity of a parallel plate condenser with dielectric constant 10 is 12 mu F . What will be its capacity if dielectric is removed ?