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Problem: Standard 14-gauge household copper wire carries 0.500 A of current with a current density of 2.40×105 A/m2. This is the amount of current drawn, for example, by a 60-watt light bulb. The conductivity of copper is5.92×107 Ω-1m-1,
A- What is the strength of the electric field in the wire that is driving this current?
I want you to explain the physics in this problem.
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