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The current supplied to an air conditioner unit is 4.20 amps. The air conditioner is wired using a 10-gauge (diameter 2.588 mm) wire. The charge density is n = 8.48 × 1028 electrons/m3. Find the
following magnitudes.
(a) current density (in A/m2)
A/m2
(b) the drift velocity (in m/s)
m/s

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