The figure below shows the cross section of three long straight current carrying wires. Wire a carries a current of 5.34 A, wire b B-ds for a clockwise Amperian loop carries a current of 5.80 A, and wire c carries a current of 5.55 A. What is the magnitude of ifi that surrounds wires b and c? a O 2.77 x 10-5 T.m O 2.10 x 10-5 T.m O 3.44 x 10-5 T.m O 3.14 x 10-7 T.m Save for Later b X C Submit Answer

A coil of wire with 3 turns is attached to a 5 Ohm resistor and is oriented perpendicular to a uniform magnetic field as shown. At a particular instant, the magnitude of the magnetic field is 0.5 Tesla and is increasing at a rate of 0.2 Tesla/second. The area of each turn in the coil is 0.1 m?. What is the magnitude of the current through the resistor? A. 0.030 A В. 0.012 A B (increasing) 0.010 A D. 0.006 A Е. 0.004 A 52

3. A current Ij = 5.0 A flows counterclockwise in the rectangular loop of width b = 4 cm and height h = 4 cm as shown in fig. 3. Determine the net force on the loop when the current I2 = 1.5 A The distance between the wire and the closest side of the loop is 9 cm. I2 Figure 3 9 cm

Copper-Nickel 1,500 ngular Snip 1,400 LIQUID 1,300 UQU:D. a 1,200 L.100 1,000 900 400 300 PARAMAGNETIC 200 100 'FERROMAGNETIC O 10 20 30 0 s0 40 70 80 0 100 WEIGHT PERCENTAGE NICKEL. 1. For points F, G, H, I and J, determine the following: a) Temperature and phase of the material (liquid, solid or 2 phase solid and liquid) b) % solid and liquid 2. At point C (100% Ni), the Curie temperature is 350°C. At point D (68.5% Ni), the Curie temperature is 0°C. Derive the equation of Curie temperature as a function of % Ni. 3. Calculate the Curie temperature and the density of the Cu-Ni alloy at 80% and 90% Ni. Use the density table from the previous lecture. TEMPERATURE, *C.