force bel law). 7. A horizontal wire has a current flowing north. What is the direction of the magnetic field made by this wire at a point (a) east of the wire, (b) above the wire, (c) west of the wire, (d) below the wire. (Understand the magnitude and direction of the magnetic field made from a long straight wire). 8. One wire has a current of 1.2 A flowing north. A second wire is placed parallel to the first wire and 20 cm to the east and has a current of 1.8 A flowing south. What is the total magnetic field from these two wires at a location 10 cm above the first wire? (Add magnetic fields form wires, or from loops of wire, as vectors). field inside this loop of wire with the current flowing