Two wire touching side by side

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SUMMARY

The discussion centers on the electrical implications of two nichrom wires, each with a diameter of 0.5 mm, touching side by side while carrying 230 V. It is established that the contact area between the wires is minimal due to their circular shape, resulting in high resistance at the point of contact. Consequently, this configuration does not create a short circuit under normal conditions. The discussion also highlights that similar principles apply to other connectors, such as banana plugs, which can achieve low resistance despite limited contact area.

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  • Understanding of electrical resistance and Ohm's Law
  • Familiarity with nichrom wire properties and applications
  • Knowledge of electrical circuit design and safety
  • Basic concepts of contact resistance in electrical connections
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Askara
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so say i have a nichrom wire of 0.5 mm dia, and pass 230 v through it.and i coil it up, but some part of the coil touched (imagine the wire parallel to each other so basically 2 circle.) will it short the circuit? i have been told that the area they touch is extremely smaller since they are circular, so the resistance is very high compare to going through the wire normally, hence it doesn't short?
 
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It depends on your setup, the surface of the wires and some other things. As an example: if you contact two banana plugs, you can get a resistance below 0.1 Ohm, and their contact area is basically point-like.
 

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