Question: A given neuron in the brain carries a current of 3.1 10-8 A. If the SQUID detects a magnetic field of 2.8 10-14

A given neuron in the brain carries a current of 3.1 × 10-8 A. If the SQUID detects a magnetic field of 2.8 × 10-14 T, how far away is the neuron? Treat the neuron as a straight wire.

A. 22 cm

B. 70 cm

C. 140 cm

D. 176 cm

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