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Magnetoencephalography (MEG) is a non-invasive method for studying electrical activity in the brain. It is based on the principle that an electric current creates a magnetic field, whether the current is in a wire, or in the neuron of a brain. Thus, your very thoughts at this moment are generating measurable magnetic fields outside your head! With today's technology, an MEG can detect fields as small as 1.2×10?15 T. The electric current needed to produce the magnetic field strength at a distance of 4 cm is 2.4x10^-10 A.

Assume this current to flow in the same direction in two neurons, which are parallel over 1.0 cm and separated by 0.70mm . What is the force between the two neurons?

Is it an attractive or repulsive force between these two neurons?

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  • Category:- Physics
  • Reference No.:- M9992422

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