An interesting question from Veritasium on YouTube

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SUMMARY

The forum discussion centers around a question posed by Veritasium regarding the transmission of signals over a long RS-232 cable and the implications of circuit design on signal propagation. Participants highlight that the speed of signal transmission is limited by the physical properties of the transmission medium and governed by Maxwell's Equations. Key factors affecting signal behavior include the voltage of the battery, the impedance of the transmission line, and the characteristics of the connected load. Ultimately, the consensus is that signals cannot travel faster than light, and practical circuit designs must account for these limitations.

PREREQUISITES
  • Understanding of Maxwell's Equations
  • Knowledge of RS-232 communication standards
  • Familiarity with circuit analysis principles
  • Basic concepts of impedance and capacitance in electrical circuits
NEXT STEPS
  • Study the implications of Maxwell's Equations on signal propagation
  • Learn about RS-232 and RS-485 communication protocols
  • Explore the concept of characteristic impedance in transmission lines
  • Investigate the effects of capacitance and inductance in circuit design
USEFUL FOR

Electrical engineers, circuit designers, and anyone interested in the principles of signal transmission and circuit analysis will benefit from this discussion.

  • #151
Old thread closed temporarily for review by the Mentors...
 
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  • #152
hutchphd said:
That is the well stated answer as reiterated several different times recently I thought we had all figured this out.
Exactly. Thread will remain closed. Thanks everybody for an interesting thread.
 
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