A circuit contains two capacitors. The first is a 400 μF capacitor initially charged to 200 V, while the second is an uncharged 1400 μF capacitor. Both are connected to open switches. What maximum voltage value could be achieved on this uncharged capacitor by correctly operating both switches?

A device composed of two identical parallel-conducting plates separated by a distance d is connected to a battery. The capacitance of this device is 430 pF. The charge on each plate is 1.45 µC when the voltage difference across the plates is V. i) Determine V. Consider the charge on each plate remaining constant. ii) What is the voltage difference across the plates if the separation distance is tripled (V_new)? iii) Determine the work done in tripling the separation?

A battery with a potential difference of 12 V is connected to a parallel-plate capacitor without any dielectric within its plates. The capacitance of the capacitor is 12.85 μF. The plates are separated by a distance of 1.00 mm. When fully charged, what is the energy density stored between the plates in SI units?

A student adjusts the capacitance of an isolated parallel-plate capacitor with a charge of 500 μC from 8.5 μF to 3.5 μF by modifying the distance between the plates using an external force. Find the work done by the external force during this adjustment.