How might electronics be different if AC voltage was 72V at 45 Hz?

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Discussion Overview

The discussion revolves around the hypothetical scenario of an alien society using a standard of 73V AC current at 46 Hz. Participants explore the implications of this lower voltage and frequency on various electrical appliances and systems, including transformers, wiring, motors, and heating elements, while assuming the laws of physics and technology are similar to those on Earth.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • Some participants suggest that a lower voltage and higher current would necessitate heavier wiring and potentially impact the design of electrical appliances.
  • There is a proposal that transformers would be less efficient and heavier due to increased core and winding requirements.
  • Some argue that motors would operate at lower speeds, raising questions about how appliances like washing machines would achieve required RPMs, possibly needing inverters.
  • Concerns are raised about the resource implications of such a system, including the need for abundant conductive materials.
  • Participants discuss the potential for using aluminum wiring, while others assert that steel would not be suitable for conductors.
  • Some express skepticism about the technological advancement of a society that would standardize on such low voltage and high current.
  • There are mentions of the sound differences in appliances, particularly between direct drive and belt-driven washing machines, and how this might relate to the frequency of the electrical supply.
  • One participant draws a parallel to radar technology and how electrical current can carry communications, suggesting a broader context for understanding electrical systems.

Areas of Agreement / Disagreement

Participants express a variety of viewpoints, with no clear consensus on the implications of the proposed voltage and frequency. Some agree on certain technical aspects, while others challenge the feasibility and practicality of such a system.

Contextual Notes

Participants note limitations regarding assumptions about resource availability and the potential impact on technology development, but these remain unresolved within the discussion.

  • #31
Maybe their eyes are more sensitive to light, but less sensitive to flicker, so this suits their light bulbs better.
Their CRTs would run at 46 hz too, and humans would find them annoying to look at, unless they were dim.
 
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