ANSWERS: 3
  • You cannot have one battery. You can have one cell. A battery is two or more cells in one unit. Example: your car has a six cell battery. The symbol for a cell is a short vertical line with a longer vertical line next to it.
    • bostjan the adequate 🥉
      A car with one six cell battery has one battery. So... how is it impossible to have one battery?!
  • Usually only 1 battery +|I-
  • I think we need more context here. Is the circuit just one battery and nothing else? Or is it one battery with two loads in parallel? If you only have one component in a circuit, it wouldn't make any sense to connect in series or parallel as those are different ways to connect two or more components to each other. But if you have two loads, you can absolutely connect those to each other in series or in parallel and then connect one battery to the circuit. The general circuit diagram for a battery is two parallel line segments with the anode (positive terminal) depicted slightly longer than the cathode (negative terminal) and the line segments perpendicular to the lines representing the wires.

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