A pair of conducting plates is oppositely charged, such that the positive plate carries 3C of charge. When the plates are in a vacuum, the potential difference between them is 5V. However, when a piece of glass is inserted to fill the gap in between the plates, the potential difference is 30V. What is the dielectric constant of the glass?

Two conductors having net charges of +13.9 μC and -13.9 μC have a potential difference of 13.9 V between them. (a) Determine the capacitance of the system. μF (b) What is the potential difference between the two conductors if the charges on each are increased to +384 μC and -384 μC? V

A small object with a mass of 4.32 mg carries a charge of 24 nC and is suspended by a thread between the vertical plates of a parallel-plate capacitor. The plates are separated by 5.63 cm. If the thread makes an angle of 13.7° with the vertical, what is the potential difference in volts between the plates?

A parallel-plate capacitor has capacitance C0 = 8.00 pF when there is air between the plates. The separation between the plates is 1.50 mm. (a) What is the maximum magnitude of charge Q that can be placed on each plate if the electric field in the region between the plates is not to exceed 3.00 * 104 V/m? (b) A dielectric with K = 2.70 is inserted between the plates of the capacitor, completely filling the volume between the plates. Now what is the maximum magnitude of charge on each plate if the electric field between the plates is not to exceed 3.00 * 104 V/m?