The effective capacitance between points $A$ and $B$ shown in the figure is (in $\mu F$)

To form a composite $16\,\mu F, 1000\,V$ capacitor from a supply of identical capacitors marked $8\,\mu F, 250\,V$,we require a minimum number of capacitors:

Three capacitors each of $6\,\mu F$ are available. The minimum and maximum capacitances which may be obtained are

The total charge on the system of capacitors with capacitances $C_{1} = 1\,\mu F$,$C_{2} = 2\,\mu F$,$C_{3} = 4\,\mu F$,and $C_{4} = 3\,\mu F$ connected in parallel is $......\,\mu C$. (Assume a battery of $20\,V$ is connected to the combination.)

Capacitors with capacitances $C_1 = C$,$C_2 = 2C$,$C_3 = 3C$,and $C_4 = 4C$ are connected to a battery as shown in the figure. The ratio of charges on $C_2$ and $C_4$ is:

When two identical capacitors are in series,they have $3\,\mu F$ capacitance,and when in parallel,they have $12\,\mu F$ capacitance. What is the capacitance of each capacitor in $\mu F$?