What happens to the effective resistance when two resistors are connected in series?

The effective capacitance of two capacitors connected in series is

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 equivalent resistance of two resistors connected in a series combination.

Define effective resistance of a number of resistors connected in a series or parallel combination

Derive an expression of affective resistance of four resistors connected in parallel.

An ideal choke draws a current of 8A when connected to an AC supply of 100 V, 50 Hz. A pure resistor draws a current of 10 A when connected to the same source. The ideal choke and the resistor are connected in series and then connected to the AC source of 150 V, 40 Hz. The current in the circuit becomes.......................

An ideal choke draws a current of 8 A when connected to an AC supply of 100 V, 50 Hz. A pure resistor draws a current of 10 A when connected to the same source. The ideal choke and the resistor are connected in series and then connected to the AC source of 150 V, 40 Hz. The current in the circuit becomes