Key Stage 3 (KS3) Physics Practice Test

In a circuit with two cells connected in series, the overall current remains the same as the current through each individual cell. When the cells are set up in a series configuration, the current flowing through the circuit is not additive like voltage; it remains at the same level. Therefore, if each cell provides a current of 0.2A, the total current flowing through the circuit will also be 0.2A.

However, if the cells were connected in parallel rather than in series, the situation would be different. In a parallel configuration, each cell would allow the circuit to draw a current from both sources simultaneously, which would indeed result in the total current being added together. But since the question specifies a series setup without explicitly stating otherwise, the overall current in this instance is simply 0.2A, not 0.4A or any other number as suggested by some of the other options.