03.44: A circular parallel-plate capacitor i*xm.p::ic bp2ria la .s connected to a battery in a circuit. p :*b:lxcaima2. .r ipThe capacitor is fully charged before the battery is disconnected from the circuit. A uniform material of dielectric constant $κ$ is inserted between the plates of the capacitor, effectively filling the space between the plates. Let $U_old$ be the energy stored by the capacitor before the dielectric was inserted, while $U_new$ is the energy stored after the dielectric was inserted. The ratio of $U_new/U_old$ is

  11.42: A parallel-plate capacitor of ca18 v,ktnqlr; )6bj zompacitance C has an insulating dielectric material of constant K filling the entire region between its plates. This capacitor now is connected to a battery of voltage V and is fully charged before the battery is disconnected. The capacitor stores energy U. Using insulating gloves, a person now removes the dielectric from the capacitor. After equilibrium is establishtl6z ;,q)1bno8r mjvk ed following the removal of the dielectric, which one of the following choices best represents the energy stored by the capacitor in terms of U?

  14.47: An air-filled parallel-plate capacitor of capacitance C is ful/e;.pe xjj ty)ly charged after being connected to a battery of voltage V. The battery then is disconnected and an insulating dielectric slab of constant K is inserted between the capacitor’s plates, fully filling the region. What is the vot)pjxj e e.;/yltage between the plates once equilibrium is established with the dielectric in place?

  15.45: A 6.00 μF parallel-ptl7c 9 hy7 4 gkif*u42ng6cbbulate capacitor is disconnected from a 12 volt battery after being fully charged. A person now carefully inserts a dielectric material of constant K= 2 so that it fills one-half of the space between the plates as shown. How much work was done by the person while inserting the dielectru 2ygc6447 bithcf9b k*unlg 7ic?