What happens to the magnetic force in an electromagnetic if the electricity is turned off

Below:

Explanation:

The magnetic field disappears when the current is turned off. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.

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# It's Muska........  :)

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.