Two capacitors `2 mu` F and `6 mu` F are in series the effective capacitance of the system is `mu` F will be .....??

If two capacitors of capacitances 2 mu F and 6 mu F are put in series, the effective capacitance of the system is

If two capacitors of capacitances 2 mu F and 4 mu F are connected in parallel the effective capacitance of the system is :

The capacitance of a capacitor that should be connected along with two capacitors, having capacitance 4 mu F and 8 mu F all in series to produce effective capacitance of (24)/(11) mu F is :

Two capacitors each of 4 mu F capacitance are joined in parallel . The effective capacitance is

The minimum number of capacitors (each of capacitance 2 mu F ) required to get an effective capacitance of 9 mu F is?

When a number of capcitors of equal capacitances are connected in series, the effective capacitance is 0.4 mu F and when they are connected in parallel, the effective capacitance is 90mu F . What is the capacitance of each capacitor ?