Neurons in our bodies carry weak currents thatproduce
Chapter , Problem 45(choose chapter or problem)
Neurons in our bodies carry weak currents thatproduce detectable magnetic fields. A technique calledmagnetoencephalography, or MEG, is used to study electricalactivity in the brain using this concept. Thistechnique is capable of detecting magnetic fields asweak as 1.0 3 10215 T. Model the neuron as a long wirecarrying a current and find the current it must carryto produce a field of this magnitude at a distance of4.0 cm from the neuron.
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