Suppose you wish to produce a 1.2-T magnetic field in a toroid with an iron core for which χ = 4.0 × 103. The toroid has a mean radius of 15 cm and is wound with 500 turns. What current is required?

Q: A 0.072-T magnetic field is typical near household magnets. What volume of that magnetic field…

A:

Q: A metal wheel with an area of 30 m2 spins at 2 rpm about a vertical axis at a place where Earth’s…

A: The magnetic field passes is along the vertical axis, and its is perpendicular to the area vector.…

Q: Suppose you wish to produce a 2-T magnetic field in a toroid with an iron core for which magnetic…

A: The mean radius of the toroid r=18 cm=0.18 m The number of turns n=400 turns The magnetic field in a…

Q: Consider a circular coil consisting of N=100 turns and having an area of A=10.0 cm². The coil…

A: GivenNumber of turns = 100 turnsArea A = 10cm2 = 0.001 m2Current I = 2.0AMagnetic field B = 0.3T

Q: A long solenoid that has 1 100 turns uniformly distributed over a length of 0.390 m produces a…

A:

Q: A long solenoid that has 890 turns uniformly distributed over a length of 0.380 m produces a…

A: Given data: Number of turns (N) = 890 Length (L) = 0.380 m Magnetic field (B) = 1.00 × 10-4 T…

Q: A solenoid produces a B = 9.13 mT magnetic field when a current of I = 1.71 A runs through it. How…

A:

Q: A long solenoid is wound with 960 turns per meter of thin wire through which a current of 472 mA is…

A:

Q: 2) 2. Determine the total flux emerging from a magnetic pole face having dimensions 5. cm by 6 cm,…

A:

Q: The magnetic field inside a 100-turn solenoid 2 cm long that carries a 10-A current is (let μ=1.257…

A:

Q: An ideal long solenoid with a non-magnetic core has 65.5 turns per em and diameter of 5.35 em. If a…

A: Given Data:- Diameter of the solenoid is  d=5.35 cm =5.35 cm×1 m100 cm =0.0535 m   Number of turns…

Q: A cardiac pacemaker can be affected by a static magnetic field as small as 1.7 mT. How close can a…

A: magnetic field B = 1.7 mT = 1.7 *10-3 T current i = 17 A permeability of free space μo = 4 π* 10…

Q: A long solenoid that has 1.00 x 103 turns uniformly distributedover a length of 0.400 m produces a…

A: The expression for the current from the equation of magnetic field for solenoid is,

Q: A long solenoid that has 1 150 turns uniformly distributed over a length of 0.410 m produces a…

A: Write the given values with the suitable variables. N=1150L=0.410 mB=1.00×10-4 T Here, N is the…

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

A: a)The length of the solenoid is,

Q: A current carrying coil is placed in a uniform magnetic field. If the coil turns through an angle 0,…

A: We know that M = NIA  Where M is the magnetic moment of the loop  N is the number of turns of the…

Q: What current is required in the windings of a long solenoid that has 1050 turns uniformly…

A: Magnetic field is produced at the center of solenoid due to current flowing through it.

Q: A Loop of area 3.00 m^2 has a constant magnetic field through aligned along its axis with a strength…

A:

Q: A 100 mH coil carries a current of 1 A. Energy stored in its magnetic field is : (A) 0.5 J (C) 1 J…

A: Given data : Self inductance=L Current=i   To find : Energy

Q: Suppose that a solenoid has a length of 75 cm and has a cross sectional area of 0.800 cm². It also…

A:

Q: A uniform magnetic field points out of the page and is increasing at a constant rate of 0.300T/s. A…

A: Given :      Change in magnetic field, ∆B = 0.300 T/s     Change in time , ∆t = 1s     radius of…

Q: An electron (q = - 1.60 x 10-19 C, m = 9.11 x 10-31 kg) moving at 3.0 x 106 m/s enters a region…

A: Write the formula for the magnetic force acting on a charged particle.

Q: ils of a solenoid of length 0.130 m carry a current of 95.0 A, it produces a magnetic field of 7.00…

A:

Q: s. At a particular instant, a neutron moves toward the east in a uniform magnetic field that is…

A: The magnetic force is given by,  F=qv×B Here, q is charge, v is speed and B is magnetic field.

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: A cardiac pacemaker can be affected by a static magnetic field as small as 1.7 mT. How close can a…

A: Given data: Current is, I = 22 A Magnetic field is, B= 1.7 mT =1.7 ×10-3 T Formula used: Magnetic…

Q: The following statements concern the magnetic field of a solenoid that has an iron core. Which one…

A: We have a solenoid of length say L, number of windings say N and current running through it is I. So…

Q: The magnitude of the torque acting on the rotor of a motor minimizes when the angle between the…

A: Torque is given by : τ = µ × B = µB sinθ Here, τ is torque µ is magnetic dipole moment  B is…

Q: The rod shown in the accompanying figure is moving through a uniform magnetic field of strength B =…

A: Given: The magnetic field strength is B=0.50 T. The velocity of the road is v=8 m/s. The length of…

Q: A long solenoid that has 1 000 turns uniformly distributed over a length of 0.400 m produces a…

A:

Q: What current is required in the windings of a long solenoid that has 1000 turns uniformly…

A: Number of turns (N) = 1000 Magnetic field (B) = 1×10-4 T Length (L) = 0.40 m Number of turns per…

Q: A solenoid of length L=26 cm and cross-sectional area A=49 cm2 with N=81 turns of wire is carrying a…

A:

Q: A magnetic field of 1.30 T is to be set up in an iron-core toroid. The toroid has a mean radius of…

A:

Q: A long solenoid is wound with 960 turns per meter of thin wire through which a current of 30.6 mA is…

A: Given data: No of turns per meter (n) = 960 turns Current (I) = 30.6 MA = 0.0306 A

Q: A conducting rod with length L = 18.6 cm is being pulled along a long rotated U-shape conductor,…

A: Write the expression for the induced emf and substitute the required values.

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: An air-core solenoid with 64 turns is 8.00 cm long and has a diameter of 1.20 cm. When the solenoid…

A:

Q: For the hexagonal loop in the figure below, given that the loop carrying a current of 12.2 A and the…

A: Given,

Q: An air-core solenoid with 68 turns is 8.00 cm long and has a diameter of 1.20 cm. When the solenoid…

A: The expression for the stored energy is,

Q: How much energy is stored in a cylindrical solenoid of length 0.734 m and radius 0.0509 m which has…

A:

Q: How much energy is stored in the magnetic field of a 20.0-cm-long solenoid that has 156 turns and a…

A:

Q: An 800 turns solenoid of length L= 0.4 m, radius R=10 cm, producing a uniform magnetic field B =…

A: We have to use some basic formula here.

Q: A proton that has a speed equal to 9.00105 m/s enters a region with a uniform magnetic field that…

A:

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.