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vladimir1956 [14]
3 years ago
9

Scientific work is currently underway to determine whether weak oscillating magnetic fields can affect human health. For example

, one study found that drivers of trains had a higher incidence of blood cancer than other railway workers, possibly due to long exposure to mechanical devices in the train engine cab. Consider a magnetic field of magnitude 1.00×10^−3 T oscillating sinusoidally at 75.0 Hz.If the diameter of a red blood cell is 7.40 μm, determine the maximum emf that can be generated around the perimeter of a cell in this field
Physics
1 answer:
ValentinkaMS [17]3 years ago
4 0

Answer:

2.02672\times 10^{-11}\ V

Explanation:

f = Frequency = 75 Hz

B = Magnetic field = 1\times 10^{-3}\ T

d = Diameter of cell = 7.4\ \mu m

t = Time taken

\omega = Angular frequency

The expression of emf is

E=NAB\omega sin\omega t

Emf is maximum when sin\omega t=1 and N = number of turns = 1

E_m=AB\omega\\\Rightarrow E_m=\pi \left(\frac{d}{2}\right)^2 \times B \times 2\pi\times f\\\Rightarrow E_m=\pi \left(\frac{7.4\times 10^{-6}}{2}\right)^2\times 1\times 10^{-3}\times 2\pi\times 75\\\Rightarrow E_m=2.02672\times 10^{-11}\ V

The maximum emf that can be generated around the perimeter of a cell in this field is 2.02672\times 10^{-11}\ V

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