When capacitor A holds a charge of 50C, the potential difference between its plates is 25 volts. When capacitor B holds a charge of 5 C, the potential difference between its plates is 0.1 volts. Which capacitor has the greatest capacitance

Two parallel-plate capacitors have the same charge Q, but the area of the plates in capacitor 1 is 2.0cm2 and the area of the plates in capacitor 2 is 4.0cm2. If the spacing between the plates in capacitor 1 is 1.0mm , what should the spacing between the plates in capacitor 2 be to make the capacitance of the two capacitors equal?     0.5mm     1.0mm     2.0mm     4.0mm

An air-filled parallel-plate capacitor has plates of area 2.10 cm2 separated by 2.10 mm. The capacitor is connected to a(n) 11.0 V battery. (a) Find the value of its capacitance. X PF (b) What is the charge on the capacitor? X pC

The capacitance of an empty capacitor is 1.2 μF. The capacitor is connected to a 12-V battery and charged up. With the capacitor connected to the battery, a slab of dielectric material is inserted between the plates. As a result, 2.6 × 10–5 C of additional charge flows from one plate, through the battery, and onto the other plate. What is the dielectric constant of the material?

An air-filled capacitor is made from two flat parallel plates 1.3 mm apart. The inside area of each plate is 7.6 cm². (a) What is the capacitance of this set of plates (in pF)? pF (b) If the region between the plates is filled with a material whose dielectric constant is 6.2, what is the new capacitance (in pF)? pF

An air-filled capacitor is made from two flat parallel plates 1.2 mm apart. The inside area of each plate is 8 cm². (a) What is the capacitance of this set of plates? C F (b) If the region between the plates is filled with a material whose dielectric constant is 6.5, what is the new capacitance? C dielectric air = = F