Can’t be converted into alternating Can be converted into Conversion current. direct current. Connecting cells in an electric circuit Cells are connected in the circuit by 2 methods: Series & parallel. The following table is a comparison between the two methods of connection. Points of Connecting cells in series Connecting cells in parallel comparison The negative pole is connected The positive poles are connected Connection to the positive pole of the 2nd together, while the negative cell & so on. poles are connected together. = the sum of emf of all the If the cells have the same emf = Emf cells. E = E1 + E2 + E3+ E4 emf of one cell. E =E1 or E2 or E3 since E1 = E2 =E3. A circuit contains 4 cells A circuit contains 3 cells A solved connected in series. connected in parallel. example The emf of the battery = 4x1.5 emf = 2 volt = 6 volt.
Conversion Can’t be converted into alternating current. Can be converted into direct current. Connecting cells in an electric circuit Cells are connected in the circuit by 2 methods: Series & parallel. The following table is a comparison between the two methods of connection. Points of comparison Connecting cells in series Connecting cells in parallel Connection The negative pole is connected to the positive pole of the 2nd cell & so on. The positive poles are connected together, while the negative poles are connected together. Emf = the sum of emf of all the cells. E = E1 + E2 + E3+ E4 If the cells have the same emf = emf of one cell. E =E1 or E2 or E3 since E1 = E2 =E3. A solved example A circuit contains 4 cells connected in series. The emf of the battery = 4x1.5 = 6 volt. A circuit contains 3 cells connected in parallel. emf = 2 volt