EMF. Currents in dc transmission lines can be 100 A or more. Some people have expressed concern that the electromagnetic fields (EMFs) from such lines near their homes could cause health dangers. Using your own observations, estimate how high such lines are above the ground. Then use your estimate to calculate the strength of the magnetic field these lines produce at ground level. Express your answer in teslas and as a percent of the earth’s magnetic field (which is 0.50 gauss). Does it seem that there is cause for worry?
EMF. Currents in dc transmission lines can be 100 A or more. Some people have expressed concern that the electromagnetic fields (EMFs) from such lines near their homes could cause health dangers. Using your own observations, estimate how high such lines are above the ground. Then use your estimate to calculate the strength of the magnetic field these lines produce at ground level. Express your answer in teslas and as a percent of the earth’s magnetic field (which is 0.50 gauss). Does it seem that there is cause for worry?
EMF. Currents in dc transmission lines can be 100 A or more. Some people have expressed concern that the electromagnetic fields (EMFs) from such lines near their homes could cause health dangers. Using your own observations, estimate how high such lines are above the ground. Then use your estimate to calculate the strength of the magnetic field these lines produce at ground level. Express your answer in teslas and as a percent of the earth’s magnetic field (which is 0.50 gauss). Does it seem that there is cause for worry?
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
Currents in dc transmission lines can be 100 A or higher. Some
people are concerned that the electromagnetic fields from such lines
near their homes could pose health dangers.
For a line that has current 130 A and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? Express your answer in tes
Express your answer in teslas.
B =
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Part B
B
BE
=
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What magnetic field does the line produce at ground level as a percent of the earth's magnetic field, which is 0.50 G.
Express your answer as a percentage.
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Part C
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Is this value of magnetic field cause for worry?
?
T
?
%
No. Since this field does not differ a lot from the earth's magnetic field, it would be expected to have almost the same effect as the earth's field.
Yes. Since this field does not differ a lot from the earth's magnetic field, it would be expected to have almost the same effect as the earth's field.
No. Since this field is much…
A velocity selector in a mass spectrometer uses a 0.130 T magnetic field.
a. What electric field strength (in volts per meter) is needed to select a speed of 3.70 ✕ 106 m/s?
b. What is the voltage (in kilovolts) between the plates if they are separated by 1.00 cm?
A velocity selector in a mass spectrometer uses a 0.11 T magnetic field.
a. What electric field strength is needed to select a speed of 4.24 ✕ 106 m/s?
V/m
b. What is the voltage between the plates if they are separated by 1.00 cm?
kV
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