The portal has been deactivated. Please contact your portal admin.

Question Video: Determining Whether Cells Are Connected in Series or in Parallel Science

The diagram shows a circuit consisting of three cells and a resistor. Complete the following sentence: The three cells are connected in _.

01:47

Video Transcript

The diagram shows a circuit consisting of three cells and a resistor. Complete the following sentence. The three cells are connected in blank. (A) parallel, (B) series.

They are asking us to decide if the diagram they’ve shown us is of three cells connected in parallel or in series. There is also a resistor, but it does not influence how the three cells have been arranged in relation to each other. And the question only refers to the three connected cells. Firstly, we are going to remember what it means for cells to be connected to each other in series or in parallel.

Cells are connected in parallel when they are situated on different branches of the circuit and the current can flow from the positive terminal of one of the cells to the opposite negative terminal of the same cell without having only one choice of path to travel through the other cells. Essentially, there are multiple routes for the current to flow, not just one. This is because the cells are not connected together in a row on the same path. But as we have said, they are on different branches of the circuit.

Three cells are connected in series when the positive terminal of one is connected to the negative terminal of the next, the positive terminal of the second is connected to the negative terminal of the third, and the current has only one path through all three cells. The cells are not on different branches; they’re in a row along the same path.

According to the circuit diagram we’ve been asked to describe, the cells are connected so that the positive terminals of each cell are connected to the negative terminals of the adjacent ones. The current only has one single path through which it can travel because the cells are in a row along the same path, meaning that the three cells in the diagram are connected in series. The correct option to complete the sentence is option (B) series.

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.