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

Explanation:

f = Frequency = 75 Hz

B = Magnetic field =

d = Diameter of cell =

t = Time taken

= Angular frequency

The expression of emf is

Emf is maximum when and N = number of turns = 1

The maximum emf that can be generated around the perimeter of a cell in this field is

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.