To solve the problem it is necessary to apply the concept of Load on capacitors. The charge Q on the plates is proportional to the potential difference V across the two plates. It can be mathematically defined as: 0= CV Where. C= Capacitance V= Voltage Our values are given as, C = 0.60pF V=30V Substituting values in the above formula, we get Q= CV Q = 0.6 * 30 Q = 18pC Where 1pC= 10-12Coulomb Therefore the charge must be 18pC to Create a 30V pore potential difference