Resistances in series and parallel.

Resistance in series

Resistance in parallel

1.       If a number of resistances are connected in such a way that the same current flows through each resistance, then the arrangement is called resistances in series. 2.       The effective resistance is a series combination is greater than the individual resistances. 3.       This combination is used to increase resistance in a circuit. 4.       This combination decreases the current in the circuit.

1.       If a number of resistances are connected between two common points such that the potential difference across each is the same then that arrangement is called resistances in parallel. 2.       The effective resistance of the combination is less than the individual resistances. 3.       This combination is used to decrease resistance in the circuit. 4.       This combination increases the current in the circuit.