A 10 A current passing through a wire 10 in. in length produces a side force of 5 N. What is a) the magnitude of B required to produce this force? b) If the length of the wire is changed to 1 mile, what is the new force on the wire? c) If the wire is made of copper with a .125 inch diameter, what would be the voltage drops and the power loss in both the 10 inch and 1 mile wires?