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Exact solution of large asymmetric traveling salesman problems

Science (New York, N.Y.)
|February 15, 1991
PubMed

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The Distance Formula01:20

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Biot-Savart Law: Problem-Solving00:59

Biot-Savart Law: Problem-Solving

The magnitude and direction of a magnetic field created by a steady current can be calculated using the Biot-Savart law.
Consider a mobile phone battery bank as a source of steady current, which flows through the wire connected between the two. What is the magnitude of the magnetic field created by this current at a field point P?
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