Scientific work is currently underway to determine whether weak oscillating magn

Question

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 x 10-3 T, oscillating sinusoidally at 74.0 Hz. If the diameter of a red blood cell is 7.80 m, determine the maximum emf that can be generated around the perimeter of a cell in this field. 1.42e-11 X Your response differs from the correct answer by more than 10%. Double check your calculations. V

Explanation / Answer

Write the expression for maximum emf .

e= NAB w

= N A B ( 2pi f)

= N ( pi r^2 ) B ( 2pi f)

= 1 [ pi ( 7.8 * 10^-6 m/2)^2 ]*( 1.0 * 10^-3 T)* ( 2pi* ( 74))

=2.2* 10^-11 V

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