When a Thin Copper Wire That Is $178 \mathrm {~m}$ Long Is Connected Between A

question 53

Short Answer

When a thin copper wire that is $178 \mathrm {~m}$ long is connected between a $1.2 - \mathrm { V }$ potential difference, a current of $2.0$ amps flows through the wire. What is the diameter of this wire? The resistivity of copper is $1.72 \times 10 ^ { - 8 } \Omega \cdot \mathrm { m }$ .

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