Three capacitors of capacitances 6 µF each are available. The minimum and maximum capacitances, which may be obtained are:
2 µF, 18 µFThe minimum capacitance can be obtained by connecting all capacitors in series. It can be calculated as follows:​C1​=61​+61​+61​=21​⇒C=2μF​ The maximum capacitance can be obtained by connecting all capacitors in parallel. It can be calculated as follows: C=6+6+6=18μF