The small currents in axons corresponding to nerve impulses produce measurable magnetic fields. A typical axon carries a peak current of 0.040 ?A
What is the strength of the field at a distance of 1.2mm ?
The small currents in axons corresponding to nerve impulses produce measurable magnetic fields. A typical axon...
1.) Part A An investigator places a sample 1.0 cm from a wire carrying a large current; the strength of the magnetic field has a particular value at this point. Later, she must move the sample to a 11.0 cmdistance, but she would like to keep the field the same. By what factor must she increase the current? Part B The small currents in axons corresponding to nerve impulses produce measurable magnetic fields. A typical axon carries a peak current...
please answer question 8-13
This is the prior information: Nerve impulses are electrical
currents in the form of “ionic flows.” Therefore the electrical
properties of the axon are important to understand in order to
understand the flow of electrical impulses. In this test, you will
explore the capacitance and resistivity of an axon of a nerve cell.
For this test, the axon will be treated as a CYLINDER of arbitrary
length “L” and radius “a” that is filled with a...
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 0.8x10−15 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 3.8 cm from the neuron.
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 4.4 cm from the neuron.
In a nerve, (simulated by a long straight wire), the magnetic field measured with a sensitive instrument is 8.0 x 10-12 T, from a 1.00 mm distance. What is the peak current carry by the nerve? Show your work.
Please list and explain steps
21-4 Magnetic Fields Produced by Electric Currents 29 Each of the wires in Fig. 21-72 carries a current of .00 A in the directions indicated. For each wire, find the magnitude and direction of the magnetic field at a point P that is 1.00 cm from the wire. «Р «Р 38 «Р Fig. 21-72
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3. Assume the Assume the same nerve in problem #2 has a diameter of 7.0 um. What is the resistivity and conductivity of the nerve (assumine it to have the same properties as axoplasma)? What would be the nerve resistance and the electromotive force acting through the nerve (using information from #2)? Electromagnetism 2. Assume a nerve of 0.50 m in length is stimulated and sends electrical impulses to the brain. Along...
This question focuses upon the fields arising from currents in straight wires. When providing numerical answers you may express them using scientific notation. Unless stated otherwise, express values to four significant figures and use the values of physical constants as provided in the course notes. Field The magntiude of a magnetic field due to a long, straight wire is 2кг Select the correct names and acceptable units for each symbol. H voltage current reluctance distance from the wire capacitance ec...
Typical large values for electric and magnetic fields attained in laboratories are about 1.8×104 V/mand 1.4 T .Determine the energy density for the electric field. Determine the energy density for the magnetic field. Compare two densities. What magnitude electric field would be needed to produce the same energy density as the magnetic field of 1.4 T ?
Typical large values for electric and magnetic fields attained in laboratories are about 2.8×1042.8×104 V/mV/m and 2.0 TT . Part A: Determine the energy density for the electric field. Part B: Determine the energy density for the magnetic field. Part C: Compare two densities. Part D: What magnitude electric field would be needed to produce the same energy density as the magnetic field of 2.0 TT ?