Question 1 A long current carrying hollow wire has an inner radius of 3.7T) cm and an outer radius of t 5.0 cm. The current in the wire is i3.0 A. Find the magnetic field at a distance 8' l 0 cm from the center ofthe wire. : Question 2 o s; a d The figure provided shows a cross section through three long wires with equal currents and a linear mass density p = 50 g/m. The lower two wires are a distance d = 4 cm apart and are attached to a table. What current will allow the upper wire to oat so as to form an equilateral triangle with the lower wires? Question 1 Up B B =0 Down In the figure provide, a rectangular loop of copper wire is half in and half out a magnetic field. If the loop is released and begins to fall, what direction is the net magnetic force on the loop? Note that the magnetic field below the dashed line is zero. O Upward There is no net magnetic force on the loop. O Downward Question 2 In the figure provided, a magnetic field is constant. What is the direction of the current in the loop of wire? O Counterclockwise O Clockwise O There is no current in the loop of the wire.Question 3 N In the figure provided, a bar magnet is pushed toward a loop of wire. What is the direction of the current in the loop? O Counterclockwise O There is no current in the loop. O Clockwise Question 4 R V L In the figure provided, what is the battery current immediately after the switch closes? V= 6.00 V, R= 8.70 0, and L = 2.90 mH. O 0.690 A O -0.967 A OOA 2.00 A