Physics, 18.08.2020 14:01 dontcareanyonemo

A very long straight current-carrying wire produces a magnetic field of 20 mT at a distance d from the wire. To measure a field of 5 mT due to this wire, you would have to go to a distance from the wire of A- 4d.
B - 16d.
C - d sqrt2
D- 8d.
E- 2d.

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A very long straight current-carrying wire produces a magnetic field of 20 mT at a distance d from t...