How does resistance change when comparing a flat sheet to a folded one

In summary, the material, thickness, shape, temperature, and length of a sheet can all affect its resistance. Conductive materials have lower resistance than non-conductive materials, thicker sheets have lower resistance than thinner sheets, and the shape of a sheet can either decrease or increase its resistance depending on the surface area and number of layers. Temperature can increase the resistance of a sheet due to increased atomic vibrations, but the extent of this effect varies depending on the material. The length of a sheet also plays a role in resistance, but it is not as significant as other factors.
  • #1
MichGen
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How does sheet resistance change when comparing a flat sheet to a folded sheet?



Is this change predictable? Would the change also depend on the number of folds? Is the capacitance of the fold an important factor in the change?
 
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  • #2


Welcome to PF;
If there is an electrical connection on the inside of the fold, then you have just shifted to a different geometry slab - different A and/or d.

I think anything else will depend a lot on the material properties of the sheet.
 

1. How does the material of the sheet affect its resistance?

The material of a sheet can affect its resistance in various ways. Conductive materials, such as metals, generally have lower resistance compared to non-conductive materials, such as plastics. This is because conductive materials have more free electrons that can easily flow and carry an electric current, whereas non-conductive materials have fewer free electrons, making it more difficult for current to flow.

2. Does the thickness of the sheet impact its resistance?

Yes, the thickness of a sheet can affect its resistance. Thicker sheets tend to have lower resistance compared to thinner sheets. This is because thicker sheets have more material for current to flow through, reducing the overall resistance. However, the type of material and its conductivity also play a role in determining the resistance of a sheet.

3. How does the shape of the sheet affect its resistance?

The shape of a sheet can affect its resistance in different ways. A flat sheet has a larger surface area compared to a folded one, allowing for more contact points between the sheet and the current-carrying medium. This can result in lower resistance. On the other hand, a folded sheet may have more layers of material, which can increase its overall resistance.

4. What role does temperature play in the resistance of a sheet?

Temperature can have a significant impact on the resistance of a sheet. In general, as the temperature increases, the resistance of a sheet also increases. This is because higher temperatures cause atoms in the material to vibrate more vigorously, hindering the flow of electrons and increasing the resistance. However, this effect may vary depending on the type of material used.

5. How does the length of the sheet affect its resistance?

The length of a sheet can impact its resistance, but it is not as significant as other factors such as material and thickness. In general, a longer sheet will have a higher resistance compared to a shorter one, as there is more material for current to flow through. This effect is often negligible for small differences in length, but it may become more significant for very long sheets or in combination with other factors.

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