A conductive loop on the x-y plane is bounded by p = 2.0 cm, p = 6.0 cm, 0 = 0º and 90°. 1.5 A of current flows in the loop, going in the a direction on the p = 2.0 cm arm. Determine H at the origin Select one: a. 3.3 az (A/m) 2.2 az (A/m) None of these O b. O c. O d. 1.1 az (A/m)

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.

An electron passes through a point 3.47 cm from a long straight wire as it moves at 39.3% of the speed of light perpendicularly toward the wire. At that moment a switch is flipped, causing a current of 18.3 A to flow in the wire. Find the magnitude of the electron's acceleration ?a at that moment. ?=

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You are performing studies of the possibility of migrating birds using the Earth's magnetic field for navigation. To modify the magnetic field in the brain of a bird, you fit the bird with coils as "caps" and "collars" as shown in the t The data on the coils indicate that they each have 210 0 of resistance, a radius of 1.10 cm, and 50 turns of wire. The centers of the coils are separated by 2.35 cm. You wish to create an "Earth-like" magnetic field of 6.0 x 10-5 axis between the coils. Given this data, you need to determine the voltage of the battery (in V) needed to power the coils.

Niobium metal becomes a superconductor when cooled below 9 K. Its superconductivity is destroyed when the surface magnetic field exceeds 0.100 T. In the absence of any external magnetic field, determine the maximum current a 5.76-mm-diameter niobium wire can carry and remain superconducting. A

The loop in the figure is being pushed into the 0.20 T magnetic field at 45 m/s . The resistance of the loop is 0.50 N. (Figure 1) You may want to review (Pages 849 - 851) . Figure 1 of 1 V В 5.0 cm

1. A 11.8 ?F capacitor is charged by a 25.0 V battery through a resistance R. The capacitor reaches a potential difference of 4.00 V at a time 3.00 s after charging begins. Find R. ________ kΩ 2.A proton moves perpendicular to a uniform magnetic field  at a speed of 1.20  107 m/s and experiences an acceleration of 1.40  1013 m/s2 in the positive x-direction when its velocity is in the positive z-direction. Determine the magnitude and direction of the field. magnitude _______    PLEASE ANSWER BOTH

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The force on a wire is a maximum of 4.50×10−2 NN when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on. A). What type of magnetic pole is the top pole face?   B). If the pole faces have a diameter of 19.0 cm , estimate the current in the wire if the field is 0.180 T.   C). If the wire is tipped so that it makes an angle of 12.0∘ with the horizontal, what force will it now feel? [Hint: What length of wire will now be in the field?]   Please show all steps :)  THANK YOU