Resistance of a metal wire of length
2 m is 30 22 at temperature 25°C. If the diameter of
the wire is 0.6 mm, then what will be the resistivity of
the metal at that temperature?
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Answer:
Answer: The resistivity of the metal is .
Explanation:
Given that,
length of wire l = 2 m
Resistance R = 30 ohm
diameter d =0.6 mm
Radius = 0.3 mm
We know that,
The resistivity of the metal is
....(I)
Put the value of R,l and A in equation (I)
Hence, The resistivity of the metal is
Explanation:
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