A device called a toroid (Fig. ) is often used to create an almost uniform magnetic field in some enclosed area. If the radius b = 3 cm and c = 6 cm. find the magnetic field B at 10 cm from the center , if I = 10 A and the number of turns N=10.

Q: 8 In Fig. 29-40, two semicircular arcs have radii R₂ = 7.80 cm and R₁ = 3.15 cm, carry current i =…

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Q: A circular coil is lying flat on xz plane. It has a current of 3A, radius of 15cm, and 15 turns. If…

A: Recall τ→=μ→×B→where B is mgnetic fieldμ is magnetic dipole moment vector

Q: A uniform magnetic field is given by B =btk^, where b = 0.30 T/s. A. Find the current in a…

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Q: A long solenoid magnet with radius R= 10cm designed for a fusion reactor is wound with super…

A: Given data: Number of turns per unit length n=180 turns per meter. Current through the coil I=30…

Q: A cube of edge length e = 9.0 cm is positioned as shown in the figure below. There is a uniform…

A: (a) The flux through the shaded face of the cube is, ϕB=BAcosθ=Bxl2cosθ Substitute the values.…

Q: A cable consist of a solid inner conductor of radius a=0.2 m surrounded by a concentric cylindrical…

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Q: Find the magnitude of the magnetic field at 1 [m] away from an infinite surface with current density…

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Q: A solid cylindrical conductor with radius 4.50 cm carriesa current of 2.00 A. The current is…

A: Given: The radius of solid cylinder conductor is 4.5 cm The current (I) is given as 2 A Distance…

Q: The accompanying figure shows a cross-section of a long, hollow, cylindrical conductor of inner…

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Q: A solenoid has 560 closely spaced turns, a length of 12.0 cm, a radius of 3.00 cm, and carries a…

A: Given,Total Number of turns, N=560Length of the solenoid, l=12.0 cml=0.12mRadius of the solenoid,…

Q: find the value of the magnetic field in microteslas (with positive values pointing out of the page…

A: The magnetic field due to arc with radius R1 is  B1=μ0i4R1 where μ0 is the permeability of free…

Q: A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The…

A: Given data: The current density is J=4br3. The radius of conductor is R.

Q: A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The…

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Q: A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The…

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Q: Calculate the potential difference between the wingtips of an aircraft with the wingspan of 64 m…

A: Given Data: Length of the wing (l) = 64 m.Speed of the aircraft (v) = 709 km/h = 196.94 m/s.Angle…

Q: Consider the following figure. 1 (a) A conducting loop in the shape of a square of edge length =…

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Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.