<Series connection of cells>
This is a method of connecting cells in a straight line, with different poles in the order of (+)(-), (+)(-). When the cells are connected in series, the bulb emits brighter light because the amount of current is large.
1. When connecting two batteries in series, connect the different poles of the (+)(-), (+)(-) batteries side by side.
<Parallel connection of cells
No matter how many batteries are connected, the light of the bulb will not be as bright as the series connection, so the batteries can be used longer.
1. Connect two batteries in parallel. When connecting the batteries in parallel, insert the battery plugs into each other.
The (+)(+) and (-)(-) poles of electricity are connected.
<Serial connection of bulbs
This is a way to connect the bulbs in one way without boiling.
The brightness of the bulbs is dim because the energy of the cell is shared, and when one bulb goes out, the rest of the bulbs go out.
<Parallel connection of bulbs
This is a method of connecting bulbs by dividing the path of the current. Because the current travels in different paths, even if one bulb breaks, the remaining bulbs will light up. The brightness of the bulbs is similar to when only one bulb is connected.
To parallel two bulbs, you connect one bulb in series, and then plug one bulb socket into the other bulb socket.
<Conclusion
Learn the difference between paralleling light bulbs in series and paralleling battery energy in series