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The electrical resistance of a conductor 
Option: 1 varies directly proportional to its area of cross-section.
Option: 2 decreases with increase in its temperature. 
Option: 3 decreases with increase in its conductivity. 
Option: 4 is independent of its shape but depends only on its volume.

Answers (1)

R=\frac{l}{\sigma \ A}

Where \sigma is the conductivity

Posted by

Safeer PP

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