What is the meaning of this circuit symbol?

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SUMMARY

The circuit symbol in question from the Cockcroft-Walton schematic is identified as a fuse, specifically rated at 0.1 amp (100mA). The discussion emphasizes the importance of using a suitable circuit breaker or fuse for applications involving wall AC. Additionally, participants express a need for equations related to charging time derivations and maximum current intake calculations for Cockcroft-Walton voltage multipliers, particularly in a simplified format suitable for high school students.

PREREQUISITES
  • Understanding of Cockcroft-Walton voltage multipliers
  • Basic knowledge of circuit symbols and their meanings
  • Familiarity with electrical components such as fuses and circuit breakers
  • Elementary algebra for calculating charging times and current intake
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  • Research suitable fuses for AC applications, focusing on 0.1 amp ratings
  • Study Cockcroft-Walton voltage multiplier design and operation
  • Learn about circuit breaker specifications and selection criteria
  • Explore equations for charging time and current calculations in voltage multipliers
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High school students, electronics enthusiasts, and anyone interested in understanding circuit design and safety in electrical applications.

wil3
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What is the meaning of the topleft most symbol in this Cockroft-Walton schematic?

http://www.instructables.com/files/deriv/F85/ISAS/FL77XCRN/F85ISASFL77XCRN.MEDIUM.jpg

It's the box with the zig zag line through it. I noticed that he is using boxes to denote resistors, but the zig zag line and current specification makes me think that it may be a fuse.

If such is the case, what is a suitable circuit breaker or fuse to use in this application? Will anything rated for a 100mA cutoff and wall AC be suitable?

If anyone would like to share some of the equations (aka charging time derivations, way to calculate max current intake, etc) for a Cockroft-Walton voltage multiplier, I would appreciate it. I am in high school, so please keep the calculus single-variable, if possible ;)

Thank you in advance for any responses.

And yes, berkeman, I am being supervised by an experienced adult :]
 
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I would say it is a fuse rated at .1 amp.
 
Averagesupernova said:
I would say it is a fuse rated at .1 amp.

Me too.