4. What is the direction and magnitude of the local magnetic eld (we call this the Earth's eld). (You will need to rotate the phone to nd the direction, for example using 3;, which points to the right when facing the screen.) |B|= uT Direction: (e. g. up and to the right) With the cell phone on the table and the screen pointing upwards, point the north pole of Magnet A downward. Measure Bz and the magnitude of the magnetic eld from Magnet A at 3 positions: 2\" above the magnetometer (z=2\") and on the table 2\" away from the magnetometer in the x and y directions. (Measure the distance om the bottom or center of the magnet): 5. Magnet A: 2:2\" |B|= [1T Bz= uT x=2\" |B|= uT BZ= uT y=2\" |B|= uT 32: HT