You then fill the capacitor with a dielectric material of dielectric constant κκ while the capacitor remains connected to the same potential difference. What is the new charge on the plates?   What is the new energy stored by the capacitor?

A parallel plate capacitor is made from two aluminum foil sheets, each 3.8cm wide and 6.1 m long. Between the sheets is a Teflon strip of the same width and length that is 0.025mm thick. What is the energy stored in the capacitor when the charge on the capacitor is 30 uC?

An isolated charged parallel plate capacitor stores electrostatic potential energy U. A dielectric with dielectric constant k is inserted between the plates of the capacitor. How much electrostatic potential energy does the capacitor now store? OA. U OB. U/2K OC. U/K OD. KU OE. 2KU

A parallel-plate capacitor is made of two square plates 20 cm on a side and 1 mm apart. The capacitor is connected to a 50-V battery. Hint # a. What is the energy stored in the capacitor? Energy stored in the capacitor is b. With the battery still connected, the plates are pulled apart to a separation of 2 mm. What is the energy stored in the capacitor now? Energy now stored in the capacitor is c. This time, starting from situation in (a), with the batteries disconnected (but capacitors still charged), the plates are pulled apart to a separation of 2 mm. What is the energy stored in the capacitor now? Energy now stored in the capacitor is d. Comparing your results in (b) and (c) above, it makes sense that the energy stored in the capacitor- increases in (c), because the work done in separating the plates is stored as the electrostatic potential energy. In (b), why does the energy decrease even though work is done in separating the plates? E D Submit Question с 4 O The energy is not…

A fully charged parallel plate capacitor has a dielectric between its plates. If the dielectric material is removed, the potential difference across the plates increases by 35 %. What is the dielectric constant of the dielectric? Assume that the capacitor is not connected to a source potential after being fully charged.