A single capacitor, C, is initially chargedwith Qigiven. A dielectricis then inserted; the dielectric constant,κ. Find the change in the capacitor’s energy asa consequence of this insertion and find the work done by an external applied force inserting the dielectric (at constant kineticenergy) to accomplish this.

A single capacitor, C, is initially chargedwith Qigiven. A dielectricis then inserted; the dielectric constant,κ. Find the change in the capacitor’s energy asa consequence of this insertion and find the work done by an external applied force inserting the dielectric (at constant kineticenergy) to accomplish this.