Mass m = 1.75 kg is suspended vertically at rest by an insulating string connected to a circuit partially immersed in a magnetic field as in the figure below. The magnetic field has magnitude B = 2.40 T and the length ℓ = 0.600 m.

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Q: Mass m = 1.30 kg is suspended vertically at rest by an insulating string connected to a circuit…

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Q: A current-carrying rectangular wire loop with width a = 0.115 m and length b = 0.210 m is in the…

A: Given data: width of loop a = .115 m.   length of loop b = 0.21m.   current in loop I = 2.75 Amp.…

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Q: The figure below shows a bar of mass m = 0.220 kg that can slide without friction on a pair of rails…

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Q: A copper wire, connected in series with a 100-2 resistor, is formed into a rectangular loop whose…

A: (a) Induced emf is ε=∆ϕ∆t=∆BA∆t=A∆B∆t=lb∆B∆t=2.0 m×3.0 m2.30 T0.30 s=46 V

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Q: In the figure, a metal rod is forced to move with constant velocity along two parallel metal rails,…

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Q: A current-carrying rectangular wire loop with width a = 0.115 m and length b = 0.205 m is in the…

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Q: A copper wire with density ρ = 8960 kg/m3 is formed into a circular loop of radius 50.0 cm. The…

A: Given data, Density ρ=8960 kg/m3 r= 50 cm or 0.5 m A=1×10-5 m2 V=0.0120 V B=0.25 T ρR=16.78×10-9 Ω-m

Q: In Figure (a), a uniform magnetic field B increases in magnitude with time t as given by Figure (b),…

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Q: In Figure (a), a uniform magnetic field B increases in magnitude with time t as given by Figure (b),…

A: Given: Bs = 9.1mT ts = 4.2s A = 9.4×10-4 m2 qs = 7.1mC

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Q: The figure below shows a bar of mass m = 0.225 kg that can slide without friction on a pair of rails…

A: mass= 0.225 Kg L=1.2 m Angle=35 Resistance =2.2 ohms B=0.5 T       Mic test…

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Q: A metal bar is being pulled on two metal rails with constant speed v = 0.40 m/s, as shown below. The…

A: Given v = 0.4 m/s L = 0.5 m B = 0.060 T R = 2 Ohm We have to find Current through 2 ohms resistor

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Q: The figure shows a bar of mass m= 0.250 kg that can slide without friction on a pair of rails…

A: The expression for the induced current, At equilibrium, component of magnetic force and component…

Q: A current-carrying rectangular wire loop with width a = 0.110 m and length b = 0.210 m is in the…

A: Givena = 0.110 mb= 0.210 mI = 2.75 AB = 0.350 T

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Q: Mass m = 1.30 kg is suspended vertically at rest by an insulating string connected to a circuit…

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Q: Calculate

A: Given: Width of the wire = 0.115 m Length of the wire = 0.220 m Current in the wire = 3.50 A…

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Q: A long conductive and rigid straight wire, laid longitudinally horizontally, with length of 30 cm…

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Q: The figure below shows a bar of mass m = 0.240 kg that can slide without friction on a pair of rails…

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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.