At a point 7 m away from a long straight thin wire, the magnetic field due to the wire is 0.2 mT. What current flows thr
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At a point 7 m away from a long straight thin wire, the magnetic field due to the wire is 0.2 mT. What current flows thr
At a point 7 m away from a long straight thin wire, the magneticfield due to the wire is 0.2 mT. What current flows through thewire?