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cjohnst
searching PlanetScale…
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by
cjohnst
2y ago
Coincidence, maybe, but convenient. That currently may be the case that many or most engineers rarely use both. But, from a historical perspective, when power generation and distribution were new, there was probably not such a distinction.
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by
cjohnst
2y ago
When f is 60Hz, it makes for some nice round numbers, and easier for mental calculations. ω=2πf At 60Hz, ω is 376.99... very near to the integer 377. Also, Z₀, impedance of free space is not far off at 376.73... Ω