Magnetism

Magnetic fields can create electricity/ currents. When you move a wire though a magnetic field, it creates a current. This can be related to the hand generator we used in class. To create a current, you not only need a magnet and a coil of wire, but also movement. When you crank the handle, the magnet is moved in and out the wire, and this creates a current, because the electrons in the wire interact with the poles of the magnet. When current flows, the wire becomes magnetic. When the current is revered, the polarity of the magnet switches. In other words, the North and South orientation switches. The higher the electric current and the greater number of loops in the wire contribute to a stronger the magnetic field.