My mom had some chest pain and a cough in the middle of the night, so she went to the 24 hr center at city of hope. They drained her lungs and sent her home after she seemed to be ok. She's been home with no new issues. Then I get an email from the doctor that the fluid came back positive for cancer.
Electromagnetic induction is the production of an electromotive force across a conductor exposed to time varying magnetic fields. Michael Faraday, who mathematically described Faraday's law of induction, is generally credited with its discovery in 1831.hen the coils are stationary, no current is induced. But when the small coil is moved in or out of the large coil (B) , the magnetic flux through the large coil changes, inducing a current which is detected by the galvanometer (G) .
Then, in the 19th century, scientists studying the relatively new field of electrical currents discovered that moving charges produce magnetic effects. A current traveling through a loop of wire creates a magnetic field along the axis of the loop.