For a charged parallel plate capacitor shown in the figure, the force experienced by an $\alpha$ - particle will be

Two capacitors each having capacitance $C$ and breakdown voltage$V$ are joined in parallel. The capacitance and the breakdown voltage of the combination will be:

Figure shows two capacitors connected in series and joined to a battery. The graph shows the variation in potential as one moves from left to right on the branch containing the capacitors.

Consider the arrangement of three plates $X$, $Y$ and $Z$ each of area $A$ and separation $d$. The energy stored when the plates are fully charged is