1. At which stage of the experiment you will use the value of the distance d between the parallel wires?
2. A current of 18 Ampere runs through the Parallel Wire Apparatus. What is the anticipated mass (in milligrams) for balancing the frame-balance? Assume d=1.0 cm, and pick the data for the constant k', the length of the wire, and the acceleration of gravity from the text (see task [2] in the Analysis).