Final answer:
In a series combination of circuit elements, the same current flows through each element and the total resistance is equal to the sum of the individual resistances.
Step-by-step explanation:
In a circuit, when two or more circuit elements are connected one after the other so that the same current flows through each element, they are said to be in series. The total resistance in a series combination is equal to the sum of the resistances of the individual elements. For example, if we have resistors R1, R2, and R3 connected in series, the total resistance would be Rtotal = R1 + R2 + R3.