A circular wire coil consists of 100 turns and is wound tightly around a very long iron cylinder with a radius of 2.5 cm and a relative permeability of 2200. The loop has a current of 7.5 A in it. a) Determine the magnetic field strength produced by the coil at the center of the coil. b) Determine the magnetic field strength produced by the coil at a location on the central axis of the iron cylinder 5.0 cm above the center of the circular coil.

A rectangular coil of wire is placed in a constant magnetic field whose magnitude is 0.60T as shown in the figure below. If the coil has an area of 3cm^2, what is the magnitude of the magnetic flux through the loop?

Please help me with this question, thank you so much A straight wire of length A carries a current I. The wire lies along the x-axis. a. Calculate the magnetic field due to the wire of length A at some distance D along the y-axis. b.  Find B, when A>>>>D (One end of the wire is at the origin o and the other is along the x-axis a distance A from the origin)

The figure below shows three edge views of a square loop with sides of length ℓ = 0.495 m in a magnetic field of magnitude 1.75 T. Calculate the magnetic flux (in Wb) through the loop oriented perpendicular to the magnetic field, 60.0° from the magnetic field, and parallel to the magnetic field.

Thanks for helping.

A circular coil 13.0 cm in diameter and containing nine loops lies flat on the ground. The Earth's magnetic field at this location has magnitude 4.50 × 10-5 T and points into the Earth at an angle of 59.0° below a line pointing due north. A 6.30-A clockwise current passes through the coil. Part A Determine the torque on the coil.

27.41     The 20.0 cm x 35.0 cm rectangular circuit shown in Fig. E27.41 is hinged along side ab. It carries a clockwise 5.00-A current and is located in a uniform 1.20-T magnetic field oriented perpendicular to two of its sides, as shown.  (a) Draw a clear diagram showing the direction of the force that the magnetic field exerts on each segment of the circuit (ab, bc, etc.).  (b) Of the four forces you drew in part (a), decide which ones exert a torque about the hinge ab.  Then calculate only those forces that exert this torque.  (c) Use your results from part (b) to calculate the torque that the magnetic field exerts on the circuit about the hinge axis ab.

A 300-turn wire loop with a 5.0 cm radius is connected to a 0.20-kg pulley by a lightweight rod. The pulley, which has a radius of 3.1 cm, is attached to a 4.1-kg block by a massless rope, as shown in the figure. The loop is in a 0.75-T magnetic field. When no current flows through the wire loop, the plane of the loop is parallel to the magnetic field, and the block attached to the pulley just touches the ground. However, when a 0.81-A current flows through the loop, magnetic forces cause the loop to rotate, which lifts the block off the ground. Calculate the equilibrium angle ? of plane of the loop relative to the magnetic field. To what height y off the ground is the block lifted?

A circular wire loop of wire has radius 2.0 cm and resistance 0.060 Ω . A magnetic field is perpendicular to the loop. How do you determine at what rate must the field change in order to induce a current of 1.5 mA in the loop to two significant figures?

The component of the external magnetic field along the central axis of a 18 turn circular coil of radius 45.0 cm decreases from 2.40 T to 0.250 T in 1.60 s. If the resistance of the coil is R = 6.00 2, what is the magnitude of the induced current in the coil? magnitude: A What is the direction of the current if the axial component of the field points away from the viewer? counter-clockwise clockwise