An electromagnet is made by inserting a soft iron core into a solenoid. The solenoid has 1800 turns, radius 2.00 cm, and length 23.0 cm. When 2.00 A of current flows through the solenoid, the magnetic field inside the iron core has magnitude 0.840 T. What is the relative permeability κB of the iron core?
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- You are designing a new solenoid and experimenting with material for each turn. The particular turn you are working with is a circular loop of radius 5.00 cm that carries a current of 15.0 A. Calculate the magnetic field B at the center of the loop. Use 4 × 10-7 T-m/A for the permeability of free space μo. Consider the coordinate system in the figure. B = Incorrect D 21 L. TFor a solenoid in vacuum of length l = 10 cm with 10* turns per meter calculate the value of the current if the solenoid is placed in an external uniform magnetic field Bext = 35 µT with field lines exactly opposite to the field produced by the solenoid. Take vacuum permeability Ho = 4x x 10-7 H/m. Provide your answer in SI units. Answer:Can you help with subquestions 9a and 9b 9a. A very long solenoid with a circular cross section and radius r= 5.10 cm with n= 1.10E+4 turns/m has a magnetic energy density uB= 6.60 mJ/m3. What is the current in the solenoid? 9b. What is the total energy stored in the solenoid if its length is 0.620 meters? (Neglect end effects.) This is not and will not be graded
- . A cylindrical solenoid has a length of 10 cm and a radius of 1 cm. It is tightly wound with 100 turns of wire. The axis of the solenoid is aligned with the z-axis, and the center of the solenoid is at the origin. The current flowing through the solenoid is 1.5 A. What is the magnetic field at the following points of interest? B, Tesla Point of interest x=0, y=0, z=2 cm x=0, y=0, z=200 cm x=0, y=2 cm, z=0 cm ساYou make a solenoid with 500 turns of wire. The solenoid has a radius of 1.5 cm. You then curve this solenoid into a circle with a radius of 8.5 cm, and run a current of 3.0 Amps through the resulting toroid. What is the magnetic field inside the tube of the toroid?A solenoid is made of 500 turns of wire, length = 12 cm, radius = 3 cm, and carries a current of 15 amps. What is the magnetic field in the center if it has an air core? What is the magnetic flux through the solenoid? What would be the magnetic field if the air core was replaced with an iron core with K= 2000?
- Determine the current I flowing through a solenoid, if the magnetic flux inside its core is found to be 2.90 x 10-4 Wb. The radius of the solenoid is 25.0 cm and the number of turns per meter is 235. APulsars, or neutron stars, rotate at a fairly high speed, and they are surrounded by strong magnetic fields. The material in neutron stars is a good conductor, and hence a motional emf is induced between the center of the neutron star and the rim. Suppose that a neutron star of radius 12 km rotates at the rate of 35 rev/s and that the magnetic field has a strength of 1.00 x 108 T. What is the emf induced between the center of the star and a point on its equator?8. An electromagnet is made by inserting a soft iron core into a solenoid. The solenoid has 1800 turns, radius 2.00 cm, and length 23.5 cm. When 2.00 A of current flows through the solenoid, the magnetic field inside the iron core has magnitude 0.920 T. What is the relative permeability κB of the iron core?
- A solenoid is used to produce a magnetic field of T at its center. Its radius is R cm, and its length is L. In order to prevent excessive heating, the maximum current that can carry is A. What is the minimum value of its turn density that will allow it to carry the maximum current safely? What length of wire is required? Assume there are no spaces between each turn.A current of 3.80 AA flows through a solenoid with 420 turns m−1m−1. An iron bar, with μ/μ0 = 3.80 ×103, is placed along the solenoid's axis. What is the magnitude of the magnetic field inside the iron bar?t-96662&cmid%3D9729&page%D10 A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two vertical wires which conduct a current I = 17.4 A, as shown in the figure. The magnetic field in the region is into the paper and has a magnitude of 60 mT. What is the tension in either wire ( in units of N)? XX X X X.X 40 cm Select one: OA 037 OB 091