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CBSE Class 12-science Answered

A wire of resistance of 20Ω is cut into two equal pieces, how will its resistance and resistivity change?
Asked by randeepsj | 28 Apr, 2021, 11:08: AM
answered-by-expert Expert Answer
Resistivity is material property. It will not change by cutting the wire.
 
Resistance of wire is directly proportional to length of wire.
Hence when a wire of resistance 200 Ω is cut into two equal pieces ,
then its resistance of each piece of wire will be 100 Ω
Answered by Thiyagarajan K | 28 Apr, 2021, 12:01: PM

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