Answer to Question #73956 in Physics for Ayrill

Question

1. Compare and contrast Biot-Savart law in magnetostatics with Coulomb’s law in
electrostatics.

2. If a current is passed through a spring, does the spring stretch or compress? Explain.

3. How is the path of the integration of ∫ B⋅d s chosen when applying Ampere’s law?

5. Suppose three infinitely long parallel wires are arranged in such a way that when
looking at the cross section, they are at the corners of an equilateral triangle. Can currents be arranged (combination of flowing in or out of the page) so that all three wires (a) attract, and (b) repel each other? Explain.