A parallel plate capacitor with vacuum between the plates has a capacitance of 3.607 μF. A dielectric material is placed between the plates, completely filling the volume between them. The capacitor is then connected to a battery that maintains a potential difference of 11.33  V across the plates. The dielectric material is pulled out of the capacitor, which requires 4.804 ·10^-4  J of work. What is the dielectric constant of the material? | Numerade

24.46. A parallel-plate capacitor has capacitance C=12.5 pF when the volume between the plates is filled with air. The plates are circular, with radius 3.00 cm . The capacitor is connected to a battery and a charge of magnitude 25.0 pC goes onto each plate. With the capacitor still connected to the battery, a slab of dielectric is inserted between the plates, completely filling the space between the plates. After the dielectric has been inserted, the charge on each plate has magnitude 45.0 pC (a

A parallel-plate capacitor is constructed with circular plates of radius 0.056 m. The plates are separated by 0.25 mm, and the space between the plates is filled with a dielectric with dielectric constant κ. When the charge on the capacitor is 1.2 μC the potential difference between the plates is 750 V. Find the value of the dielectric constant, κ. | Numerade

What is dielectric constant?