4 wires of same material the same cross sectional area and the same length when connected in parallel give a resistence of 0.25ohms
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resistance is 1 ohm each as
they are in parallel
1/Rp =1/r + 1/r+1/r+1/r
1/0.25. =4/r
r=1 ohm
they are in parallel
1/Rp =1/r + 1/r+1/r+1/r
1/0.25. =4/r
r=1 ohm
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