Obtain an expression for effective Capacitance of two Capacitors Connected in series.

The effective capacitance of two capacitors connected in series is

Obtain the expression for effective capacitance of two capacitors connected in parallel.

Obtain an expression for equivalent resistance of two resistors connected in a series combination.

Obtain an expression for equivalent resistance of two resistors connected in parallel.

a] Obtain an expression for the equivalent resistance of three resistors connected in series. Also write the expressions for current and voltage in the circuit. b] Mention any two advantages of connecting resistors in series.

Obtain an expression for the capacitance of a spherical conductor.