Neurons in our bodies carry weak currents that produce detectable magnetic fields. A technique called magnetoencephalography, or MEG, is use

Question

Neurons in our bodies carry weak currents that produce detectable magnetic fields. A technique called magnetoencephalography, or MEG, is used to study electrical activity in the brain using this concept. This technique is capable of detecting magnetic fields as weak as 1.0 10-15 T. Model the neuron as a long wire carrying a current and find the current it must carry to produce a field of this magnitude at a distance of 3.6 cm from the neuron.

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Thiên Hương 3 weeks 2021-08-22T18:20:15+00:00 1 Answers 0 views 0

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    2021-08-22T18:22:10+00:00

    Answer:

    I = (1.80 × 10⁻¹⁰) A

    Explanation:

    From Biot Savart’s law, the magnetic field formula is given as

    B = (μ₀I)/(2πr)

    B = magnetic field = (1.0 × 10⁻¹⁵) T

    μ₀ = magnetic constant = (4π × 10⁻⁷) H/m

    r = 3.6 cm = 0.036 m

    (1.0 × 10⁻¹⁵) = (4π × 10⁻⁷ × I)/(2π × 0.036)

    4π × 10⁻⁷ × I = 1.0 × 10⁻¹⁵ × 2π × 0.036

    I = (1.80 × 10⁻¹⁰) A

    Hope this Helps!!!

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