03.44: A circular parallel-plate capacitor is connected to a battery.jr3xihk vhcc j9i :6k5-zl-d in a circuit. The capacitor is fully charged before the battery is disconnected from the circuit. A u5k.c 9vd 3xiij:zk-lc hjr6h-niform 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 capacitance C has a0 vz anm nz8 x96u*o wno/ p+dj27xzb:3tynie:n 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 thzv notinuzew 6n9j xyz/o*3m+8:ba 2px07nd :e 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 by the capacitor in terms of U?

  14.47: An air-filled parallel-plate capacitor of capacitance C is fully-5ttga00 o:tzq of6ln charged after being conne5:lt0 zgatq o- t60nfocted 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 the dielectric in place?

  15.45: A 6.00 μF parallel-plate capacitorswe6 :kk p1obswr-m--2hy *yk 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 filkoy -s-p ys- kwh*2w :6ebrkm1ls one-half of the space between the plates as shown. How much work was done by the person while inserting the dielectric?