Is current multliplied?

Other Hardware General Electronics
1

Hello all,

I am a total noob to the arduino/electronics world. Today I built my first LED cube and it worked great, now I want to take the project bigger. I want to control a string of 9 led lamps in my house. Each lamp will consist of a cluster of 3 LEDs wired in series. My questions is when I do the calculations for a single lamp to I multiply the currents? I know the voltage drops are multiplied but are the currents multiplied as well? Any help would be greatly appreciated.

Thanks.

2

No. And it's not multiplied either, but added.

Anything in series, voltages add, current is the same as one element.

Anything in parallel, currents add, voltage is the same as one element.

3

Thanks for the quick reply. That's a huge help!