Why Are All Materials Not Magnetic? Every substance is made up of tiny units called atoms. Each atom has electrons, particles that carry electric charges. … In substances such as iron, cobalt, and nickel, most of the electrons spin in the same direction. This makes the atoms in these substances strongly magnetic—but they are not
What Are Magnetic Field Properties? The properties of magnetic field lines can be summarized by these rules: … Magnetic field lines can never cross, meaning that the field is unique at any point in space. Magnetic field lines are continuous, forming closed loops without beginning or end. They go from the north pole to the
How Can We Plot Magnetic Field Of A Bar Magnet? place the plotting compass near the magnet on a piece of paper. mark the direction the compass needle points. move the plotting compass to many different positions in the magnetic field, marking the needle direction each time. What can be used to map the magnetic