This video will help you to identify series and parallel combination of resistors when a mixed combination of resistors is given in a circuit.
To watch Current Electricity Part 1 click on the link /watch/wZy7Uf4Vku0V7
To watch Current Electricity Part 2 click on the link /watch/seSuRtvwsASwu
To watch Current Electricity Part 3 click on the link /watch/4XuSuQGRJN3RS