Resistors in series circuits
When resistors are connected together in series, we can add their resistances together to find the total resistance in the circuit.
We write this relationship as;
\({R_T} = {R_1} + {R_2} + {R_3} + ...\)
Question
Calculate the total resistance (RT) in the series circuit shown below.
Circuit with a 6 V battery, two 10 ohm resistors and a 20 ohm resistor in series.
Use;
\({R_T} = {R_1} + {R_2} + {R_3}\)
\({R_T} = 10 + 20 + 10\)
\({R_T} = 40\Omega\)
