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Resistance of a metal wire of length is 26ohm at 20°C.If the diameter of the wire is 0.3 mm. What will be the resistivity of the metal at that temperature?
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I need a well explained answer
Resistance of a metal wire of length is 26ohm at 20°C.If the diameter of the wire is 0.3 mm. What will be the resistivity of the metal at that temperature?
[(Purple you my Sisos forever )]
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Answer:
Explanation:
R = P [tex]\frac{l}{A}[/tex]
P = [tex]\frac{RA}{l}[/tex]= [tex]\frac{26 * [0.6^{2}] \frac{\pi }{4} * 10^{-6} }{1}[/tex]
= 1.83 * [tex]10^{-6}[/tex] Siemen/meter