The resistivity of copper is 1.77×10-11 Ωm. A copper wire of length 56.5 cm and cross-sectional area 1×10-6m2 is connected to the two sides of a 9 V battery. If no other resistance is connected to the battery, what will be the current flowing in the wire?
9.0×105 A
1.0×105 A
2.9×105 A
1.1×105 A
Answers: 2
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