03.44: A circular parallel-plate capacitor is whly3/*(im-ed 3zg8b hdh-h e connected to a battery in a circuit. The capacitor is fully charged before the battery is disconnected from the -h3 ew dlhiy*ed(hmb3/z 8g h-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 casg1((neg ;:axr5ebf 0c hn dj/pacitor of capacitance 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 established following the removal of the dielectric, which one of the following choices best represents the energy stored :(ge/snh0 c na ejx5;bgrd1 f(by the capacitor in terms of U?

  14.47: An air-filled parallel-plate capacitgqu .lx)i+ /szor of capacitance C is fully 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 voltage between the plates once equilibrium is established with th +xgsl.) qiuz/e dielectric in place?

  15.45: A 6.00 μF parallel-pvfnhnd18:n mti v,7e4 late 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- ,v4d inf7hv:nmt1e8nhalf of the space between the plates as shown. How much work was done by the person while inserting the dielectric?