PHYA22H3 Lecture Notes - Lecture 21: South Magnetic Pole, Unit Vector

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Magnetism: magnetism half break in charges. Compass and geomagnetism currents in molten iron in core of. Poles are offset from: geographic north pole is poles. South of rotation axis magnetic pole due to south poles being attracted to north poles: magnetic north pole is moving. Magnetism: magnets can only pick up certain things object will be attracted to both sides. Oersted discovered that electric current in a urine causes compasses to turn right current hand rule orientation of compass needles to the direction of direction direction of of fingers thumbs magnetic current field. For drawings vectors into page vectors out of page. O o o o or a current into page current of page out. Force: opposite forces on poles exerts torque on compass needle until it is parallel to magnetic field, magnetic field at each point are tangent to a circle around wine. Ni magnetic coil of field at centre of.