Question

Resistance of a metal wire of length 1 m is 26 2 at 20°C. If the
diameter of the wire is 0.3 mm, what will be the resistivity of the
metal at that temperature? Using Table 12.2, predict the material
of the wire.
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Answer 1

Answer:

RESISTANCE OF A METAL WIRE OF LENGTH 1M IS 26 OHM. AT 20 DEGREES C . IF DIAMETER OF THE WIRE IS 0.3 MM , WHAT WILL BE THE RESISTIVITY OF METAL AT THAT TEMPERATURE. Thus, the resistivity of the metal wire at 20 C is 183.69 x 10-8 m.

Explanation:

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