Capacity of a capacitor is `3muF`. A slab of dielectric constant 4 is inserted between the plates and capacitor is charged to 200V and then isolated. What is the new potential difference if the dielectric slab is removed?

A charged parallel plate capacitor has a potential energy U. if a slab of dielectric constant k is inserted between the plates, then the new potential energy will be_

A parallel plate air capacitor has a capacitance of 4muF . A slab of dielectric constant 4 and thickness 4 cm completely fills the space between the plates. The potential difference between the plates is maintained constant at 200 volt. What is the change in the energy of a capacitor if the slab is removed?

A parallel plate air capacitor has a capacitance of 3 xx 10^-9F . A slab of dielectric constant 3 and thickness 3cm completely fills the space between the plates. The potential difference between the plates is maintained constant at 400 volt. What is the change in the energy of capacitor if the slab is removed?

Two plates of a parallel plate capacitor are 4 mm apart. A slab of dielectric constant 3 and thickness 3mm is introduced between the plates with the faces parallel to them. The distance between the faces is so adjusted that the capacitance of the capacitor becomes 2/3 of its original value. What is the new distance between the plates ?

An electric field of 3X10^4 Vm^-1 is produced between the plates 0.05m apart, of a parallel plate capacitor when it is fully charged. Now an uncharged metal plate of thickness 0.01m is inserted between capacitor plates:-What would be the potential difference if a dielectric slab (k = 3) were introduced in place of metal plate

Explain what would happen if in the capacitor given, a 3mm thick mica sheet (of dielectric constant= 6) were inserted between the plates. After the supply was disconnected .

A metal plate is introduced between the plates of a charged parallel plate capacitor. What is its effect on the capacitance of the capacitor?

A parallel plate capacitor is charged and then isolated. The effect of increasing the plate separation on charge, potential, capacitance respectively are-

Explain what would happen if in the capacitor given , a 3mm thick mica sheet (of dielectric constant= 6) were inserted between the plates. While the voltage supply remained connected. V= 100 volts