Conductors, Capacitors, Dielectrics

What must be true for a capacitor to be considered fully charged?

Which device is specifically designed to store electrical energy in an electric field?

If a dielectric material with dielectric constant $K$ is inserted into a capacitor, which already has charge $Q$ and potential difference $V_0$ without the dielectric, what is the new potential difference across the capacitor?

If two identical capacitors are connected in series with a battery, how does the equivalent capacitance compare to that of a single capacitor?

What happens to the electric charge on a conductor when it is brought near another charged object?

What happens to the potential difference across a capacitor when the separation between its plates is doubled while keeping the charge constant?

When a parallel plate capacitor's dielectric constant increases with every other factor remaining constant, what happens to the charge stored on its plates when connected to a constant potential difference?

What is the charge on a capacitor with a capacitance of 8 microfarads (µF) when connected across a battery with a voltage of 12 volts?

Which parameter least influences maximum displacement current density (Jmax) between plates non-vacuum variable permittivity $\varepsilon_r$ during charging cycle?

What physical quantity does a farad (F) measure?