The resistance of no28 copper wire is 000213omegacm the


The resistance of No.28 copper wire is 0.00213Ω/cm. The resistivity of the dommercial copper is1.72E-8 Ωm. Find:

a. the diameter of No.28 copper wire
b. the heat power generated on a 12-m No.28 copper wire whenit is connected to a 1.5 V battery (Neglect the internal resistance of the battery.).

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Physics: The resistance of no28 copper wire is 000213omegacm the
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