JEE Main 202623 Jan, Evening shiftPhysicsMediumElectrostatics167× since 2002
A parallel plate capacitor with plate separation 5 mm is charged by a battery. On introducing a mica sheet of 2 mm and maintaining the connections of the plates with the terminals of the battery, it is found that it draws 25% more charge from the battery. The dielectric constant of mica is _________.