Differentiate between resistances in series and parallel.
|Resistances in Series||Resistances in Parallel|
|1||In this type of connection, the resistances are connected one after the other such that the same amount of current flows through each resistance.||1||In this type of connection, the resistances are connected between two common points such that the potential difference across each resistor is the same.|
|2||For n number of resistors connected in series, the effective resistance RS is equal to the sum of the individual resistors.
RS = R1 + R2 + R3 + R4+ …… Rn
For n number of resistors connected in pparallel, the reciprocal of the effective resistance (Rp) is equal to the sum of the reciprocals of the individual resistances.
|3||The effective resistance in series combination is greater than the individual resistances.||3||The effective resistance in parallel combination is less than the individual resistances in the combination.|
|4||It is used to decrease the current in the circuit.||4||It is used to increase the current in