03.44: A circular parallel-plate zrn;lf5xnik(l owtixw2:* 3276s t8cs/uc a ycapacitor is connected to a battery in a circuit. The c* 5axf2l/txi( n uk2l:o;sis78ycnt rz6w3wc apacitor 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 capacitance ehsr0s0fyy867d;h dh 4 ahsrt,jb3 a7C 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;76h0ay0y 8fr4hs ed3s,bh darh7j ts , 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 chargedjz;hb ubies-ep0,r qkcw; 2 3. 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 establishe ikrcz;ju3sqbee-w2p b0 ,;.hd with the dielectric in place?

  15.45: A 6.00 μF parallel-pl0)xe- 9swzy kmefrd62ate capacitor is disconnected from a 12 volt battery after being fully charged. A person now carefully inserts a diere)zkxm2-d s yf0w96e lectric 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 dielectric?