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Question 10 10 points part 1 of 1 Two parallel wires are 6.3 cm apart, and each carries a current of 6.3 A. . The permeability of free space is 4T X 10-7T m/A. If the currents are in the same direction find the force per unit length exerted by one of the wires on the other. Answer in units of N/m.
Question 12 part 1 of 1 10 points A flexible loop of conducting wire has a radius of 0.18 m and is perpendicular to a uniform magnetic field with a strength of 0.17 T, as shown in the figure. X X X X X/X X X x \x x x X X X X The loop is grasped at opposite ends and stretched until it closes to an area of 7 x10-³ m², as shown in the figure. xx xx X X X X X X X X X xxx It takes 0.34 s to close the loop. Find the magnitude of the average emf induced in the loop during this time. Answer in units of V.
Question 4 part 1 of 1 10 points Two parallel wires carry equal currents in the opposite directions. Point A is mid- way between the wires, and B is an equal distance on the other side of the wires. What is the ratio of the magnitude of the magnetic field at point A to that at point B? B 1. B₂ B 2 -0 B, 3. 4 S P B₁-2 B₂ B 7. B. 7 5 B₂ B. 1 B B₁ 1 B₂ 2 B. 10 10 2In Nim BA B. 3 B₁ 9. B -3 B 4 B. 3 2 Question 5