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.
The shape of the magnetic field created by current flow in a wire will be circular around the wire. The magnetic lines of force surround or wrap around the wire according â¦ to the left hand rule.Grab the wire with your left hand with your thumb extended and pointing in the direction the electrons are flowing.he shape of the magnetic field created by current flow in a wire will be circular around the wire. The magnetic lines of force surround or wrap around the wire according â¦ to the left hand rule.