physiology
A narrow field of study within a larger field is often called a sub-discipline.
The question founders on the rocks of a chicken/egg conundrum. The presence of both an electric field and a magnetic field is required in order to produce an electromagnetic wave.
light exhibit magnetic field but i cant say about electric Field...
Cell biology is a huge field that aims to understand everything about cells, what they are made of, how they interact with their environment and each other, how they grow, divide and multiply, how different cells carry out specific functions, and the study of the organelles contained within each cell.
An electric motor. In a motor the coil spins within the magenetic field producing mechanical energy. In a generator the magnet spins within a coil to produce electricity. in either case the magnets can be either solid fixed magents or electromagnetic coils.
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generator
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An electric Generator.
What is happening to the cells in this field
Motion of a coil within a magnetic field will induce a current in the coil if it can complete a circuit.
scanning