Solenoids are useful because they produce very strong magnetic fields. Consider a solenoid that contains 2800 turns per meter, with a current of 0.55 A flowing through the solenoid.  (a) What is the magnetic field inside the solenoid?  (b) What current must flow through a long, straight wire to produce a similar magnetic field 1.25 cm away from the wire?

Q: If the solenoid is free to turn about the vertical direction and a uniform horizontal magnetic field…

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Q: The magnetic field at the center of an infinite solenoid with radius R is found to have a strength…

A: Given data: Original radius = R Magnetic field = B New radius (R') = 2R Number of turns per unit…

Q: You have designed and constructed a solenoid to produce a magnetic field equal in magnitude to that…

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Q: A solenoid used to produce magnetic fields for research purposes is 2.0 m long, with an inner radius…

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Q: A Solenoid of length 0.250m and radius 0.0200m is comprised of 120 turns of wire. Determine the…

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Q: You have designed and constructed a solenoid to produce a magnetic field equal in magnitude to that…

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Q: Two very long solenoids have the same length, but solenoid A has 18 times the number of turns, 1/4…

A: Use formula of magnetic field at inside of solenoid and put the given values to calculate ratio .…

Q: Two very long solenoids have the same length, but solenoid A has 18 times the number of turns, 1/4…

A: The magnetic field inside a solenoid is B=μ0NIL      ...(1) where μ0 is the permeability of free…

Q: What should be the length of an ideal solenoid consisting of 1250 turns for the magnetic field in…

A: The coils that are able to produce magnetic field which is uniform like from a bar magnet , due to…

Q: A nearly horizontal dc power line in the midlatitudes of North America carries a current of 1000 A…

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Q: A dialysis machine employs two solenoid valves which work to control blood flow thru the machine by…

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Q: Consider the configuration shown below. The loop of wire, which is inside the solenoid, has the…

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Q: Why magnetic field strength increases when you put a ferromagnetic material inside a solenoid…

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Q: What should be the length of an ideal solenoid consisting of 1250 turns for the magnetic field in…

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Q: An ideal toroidal solenoid has an inner radius of 14.5 cm and outer radius of 19.0 cm. It carries a…

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Q: Given: The constant 4. is called the permeability of free space Ho = 4n x 10-7 T m/A 1. Calculate…

A: Given, Length of conductor (L) = 25.0 cm Current (I) = 2.00 A *As we can only answer 1st question,…

Q: The horizontal component of the earth’s magnetic field at a certain place is 3.0 ×10-5 T and the…

A: Given, Magnetic field (B)= 3 x 10-5 T and the direction of the field is from the geographic south to…

Q: Two solenoids are nested coaxially such that their magnetic fields point in opposite directions.…

A: Given: The radius of the outer solenoid is ro=20 mm=20×10-3m The length of the outer solenoid is…

Q: Some animals are capable of detecting magnetic fields and use this sense to help them navigate.…

A: Given value--- current = 4.90 kA. magnetic force = 50 micro T. We have to find--- How far from…

Q: A solenoid of length 1.20 m and radius 10.0 cm is comprised of 500 turns of wire. Determine the…

A: Given data: Length (L) = 1.20 m Radius (r) = 10.0 cm Number of turns (N) = 500 turns Current (I) =…

Q: A current of 7.37 A in a solenoid of length 10.0 cm creates a 0.353 T magnetic field at the center…

A: From the question we are told that The current is I=7.37A The length is L=10.0 cm=0.1 m The magnetic…

Q: It is desired to construct a solenoid that will have a resistance of 5.00 Ω (at 20°C) and produce a…

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Q: A solenoid has a length of 15mm and a radivs of 0.25 mm and consists of 5000 circular turms. If a…

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Q: A device called a toroid (Fig. ) is often used to create an almost uniform magnetic field in some…

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Q: length of an ideal solenoid

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Q: In a cathode ray oscilloscope, 100 electrons are moving with a speed of 8.0 x106 m/s horizontally…

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Q: The magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius…

A: Given: Inner radius of the toroid ri = 0.700 m outer radius of toroid ro = 1.30 m number of turns of…

Q: For a solenoid in vacuum of length l = 10 cm with 104 turns per meter calculate the current required…

A: Given data: Length, l=10 cm=0.10 m Number of turns, N=104 turns/m Magnetic field, B=70 μT=70×10-6T…

Q: Consider a 7.27-meter-long solenoid with 9510.0 turns of wire carrying a current 1.89 A. Running…

A: GivenLength of solenoid, L=7.27 mN=9510 turnscurrent, I1=1.89 Asecond wire carryingCurrent, I2=413…

Q: A toroidal solenoid has an inner radius of 30 cm and an outer radius of 31 cm. It has 500 loops and…

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Q: The magnitude of the magnetic field inside a solenoid (far from its ends) is 5.97 mT.  If the…

A: Given- B = 5.97 mT L = 58.2 cm = 0.582 mI = 5.67 Aμ = 4π × 10-7

Q: A toroid having a square cross section, 5.73 cm on a side, and an inner radius of 21.3 cm has 400…

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Q: It is desired to construct a solenoid that will have a resistance of 6.00 Ω (at 20° C) and produce a…

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Q: solenoid has a length of 15 mm and a radius of 0.25 mm, and consists of 5000 circular turns. If a…

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Q: An ideal solenoid having 177 turns and carrying a current of 5 A is 12 cm long. What is the…

A: Given, Number of coil(N)=177turns Current=5A Magnetic field=?

Q: Magnetic field lines can be entirely confined within the core of a toroid, but not within a straight…

A: Magnetic field(B) is given by μ0NI. Where I is the current. In torroid, the magnetic field due to…

Q: A long solenoid (diameter = 5.0 cm) is wound with 960 turns per meter of thin wire through which a…

A: Data Given,  Diameter of the solenoid ( d ) = 5 cm  No. Of turns ( n ) = 960 per meter Current in…

Q: A 13.5 cm long solenoid contains 789 turns and carries a current of 4.75 A. What is the strength ?…

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Q: A toroidal solenoid has 825 coils. How large a current must it be carrying so that the magnetic…

A: Here given a solenoid have 825 coils. The magnetic field is 0.025 T at a distance 17 cm. We have to…

Q: A solenoid with 500 turns, 0.10 m long, carrying a current of 4.0 A and with a radius of 1 x 10-2…

A: A solenoid is a type of electromagnet whose intention is to produce a controlled magnetic field. If…

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.