Integrated Management. To eliminate cogongrass and prevent regrowth, the rhizomes must be destroyed. It has been shown that an integrated approach that combines burning, tillage (mechanical disturbance), and chemical applications provide the best solution for cogongrass management.
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off.Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field.he magnetic field of electromagnets in the general case is given by Ampere's Law : which says that the integral of the magnetizing field H around any closed loop of the field is equal to the sum of the current flowing through the loop.
Best Answer: There probably isn't a good way to answer this except to say that this is part of Maxwell's equations. The magnetic field produced is such that it would tend to oppse any change in current caused by the changing electric field.But to ask for aything deeper is actually asking why Maxwell's equations are true. And that is a very deep question with perhaps no good answer.he magnetic field produced is such that it would tend to oppse any change in current caused by the changing electric field.