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 times 10^-3 T oscillating sinusoidal at 50.5 Hz. If the diameter of a red blood cell is 7.00 mu m, determine the maximum emf that can be generated around the perimeter of a cell in this field. _____________ V

Explanation / Answer

given

f = 50.5 Hz

diameter is d = 7 X 10-6 m

B = 1 X 10-3 T

using equation

Emax = N A B sint

here sint = 1 because emf is maximum

and N = 1

Emax = N A B

Emax = A B

but A = 3.14 X ( d / 2 )2

A = 3.14 X ( 7 X 10-6 / 2 )2

A = 3.84 X 10-11 m2  

and

= 2 X 3.14 X 50.5 = 317.14 rad/sec

Emax = 3.84 X 10-11 X 1 X 10-3 X 317.14

Emax = 1.217 X 10-11 volts

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.