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The magnetic fields produced by nerve impulses are described as being about

Question
The magnetic fields produced by nerve impulses are described as being about
one-billionth of Earth's magnetic field
equal to Earth's magnetic field
one-half of Earth's field
one hundred times Earth's field
Answer
one-billionth of Earth's magnetic field
Detailed Explanation
The chapter states that these fields are very weak, about one-billionth of Earth's magnetic field. — Examisthan.com
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