Correct the following statement. To decrease the effective capacitance, the given capacitors are to be grouped in parallel.

Correct the following statement. The effective capacitance increases when number of capacitors are grouped in series.

Derive an expressions for effective capacitance of capacitors connected in parallel.

Derive an expression for the equivalent capacitance when capacitors are connected in parallel.

Correct the sentences if required changing the underlined portion. To decrease the effective resistance the given resistors are to be connected in series.

Correct the following statement. Work is not required to charge a capacitor.

The capacitance of a capacitor decreases, if

Correct the following statement The mass of a body decreases when it is negatively charged.