3 ms·

Why does divisibility by 3 matter?

• spamizbad 2y ago
  If I had to guess: common multiple of nominal voltage of a single battery cell (which is 1.5 to 3V)
• m463 2y ago
  Might be for transformers windings in vs windings out? I think transformers are pretty efficient, but convert voltage in multiples. I'm not an EE though and don't know if that is how electrical conversion is actually handled in cars.
  • kogepathic 2y ago
    > transformers windings in vs windings out Transformers only apply to AC, where there is a fluctuating magnetic field. A transformer in a DC circuit is just a physically large (very low resistance) resistor. The standard practice to convert DC voltage (at least for these voltages) would be a buck converter, which is an active circuit. [1] [1] https://en.wikipedia.org/wiki/Buck_converter https://en.wikipedia.org/wiki/Buck_converter
  • klysm 2y ago
    Even if it was AC, the ratio of the number of turns is what matters. I don’t see why 3 would matter there.