A wire of length L, diameter d, resistance R is made of material with resistivit

Question

A wire of length L, diameter d, resistance R is made of material with resistivity ?. If I take the wire and cut it into five equal pieces and then put those pieces in parallel to make one single thick wire L/5 in length, what will be its resistance? R/5 R/25 25R R 5R A wire of length L, diameter d, resistance R is made of material with resistivity ?. If I take the wire and cut it into five equal pieces and then put those pieces in parallel to make one single thick wire L/5 in length, what will be its resistance? A wire of length L, diameter d, resistance R is made of material with resistivity ?. If I take the wire and cut it into five equal pieces and then put those pieces in parallel to make one single thick wire L/5 in length, what will be its resistance? R/5 R/25 25R R 5R R/5 R/5 R/25 R/25 25R 25R R R 5R 5R

Explanation / Answer

A becomes 5A

l becomes L/5

so R is decreased by a factor of 25

so r=R/25

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