1. | Consider the point exactly halfway between the two wires. Can you adjust the current so that, with current passing through each of the wires, the net field is zero here? |
2. | Note the distance between the field lines from one of the wires. Are they equally spaced? Explain this. |
3. | With currents of different magnitudes passing through the two wires, how do the forces on the two wires compare? What is the reason for this? |