Magnetic Flux, Induction, and Ampere's Circuital Law
The wire loop formed by joining two semicircular wires of radius and carries a current of as shown in the figure above. Find the magnitude of the magnetic field at the center
The magnetic constant is
The above figure shows two stationary and infinitely long bent wires and lying on the -plane, each carrying a current of Find the magnitude of the magnetic filed at the origin
Assume
The magnetic constant is
A red wire is bent, as shown in the figure above. The wire carries a current of and the radius of the bent coil is If the angle is , what is the magnitude of the magnetic field at the center
A red wire is bent, as shown in the figure above, carrying a current of The radius of the smaller arc is and that of the bigger arc is If the angle in the figure is given by what is the magnitude of the magnetic field at the center
The magnetic constant is
A worker that maintains trolleys has to twist one part of the wiring in order to tighten up the wires. He knows that a direct current that goes through wires induces magnetic field and he wants to minimize the magnetic field in the loop to avoid any side effects.
The worker can twist the wire in two ways shown in the picture above. If the radius of the loop is , and the magnetic field strength at a distance from a straight wire was , what is the difference between the magnetic field strength in the middle of the loop in the case a) and b) in A/m?
Details and assumptions
- Your answer should be the absolute value of the difference between the fields.