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30 April, 20:38

What happens to the resistance of a wire as its length increases

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  1. 30 April, 21:51
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    Resistance increases with length because the electrons have further to go, so suffer greater collisions with atoms in the material. Look at these wires: Electrons moving through the short wire only feel resistance for a short time compared to the longer one. This means its resistance is less.
  2. 30 April, 23:51
    0
    A longer length leads to a higher resistance
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