r beam is 1400 W/m?. What is the amplitude of the magnetic field in the beam (in uT)? (A) 8.44 (B) 12.3 (C) 1.00 (D) 3.42 (E)

A surface of area 50 cm ^2 is placed perpendicular to a magnetic field of strength 0.85T. The magnetic flux passing through the circuit will be * 5 x10 ^-3weber 4.25x 10^-3 weber 2.25x 10^ +3 weber 6.25x 10^+3 weber

In a given region of space, the vector magnetic potential is given by A = x5 coszy + z(0.2+ sin zx) mWb/m. The magnetic flux passing through a square loop with 0.25 cm long edges if the loop is in the x-y plane, its center is at the origin, and its edges are parallel to the x- and y- axis?

Pulsars, or neutron stars, rotate at a fairly high speed, and they are surrounded by strong magnetic fields. The material in neutron stars is a good conductor, and hence a motional emf is induced between the center of the neutron star and the rim. Suppose that a neutron star of radius 12 km rotates at the rate of 35 rev/s and that the magnetic field has a strength of 1.00 x 108 T. What is the emf induced between the center of the star and a point on its equator?

A circular conducting loop with a radius of 1.00 m and a small gap filled with a 10.0 resistor is oriented in the xy-pane. If a magnetic field of 2.0 T, making an angle of 30° with the z-axis increases to 9.0 T, in 2.0 s, what is the magnitude of the current that will be caused to flow in the conductor?

A positively-charged ion travelling at 250 m sis fired between two parallel charged plates, M and N. There is also a magnetic field present in the region between the two plates. The direction of the magnetic field is into the page as shown. The ion is travelling perpendicular to both the electric and the magnetic fields. M ✗ ✗ X X (+) ✗ ✗ N The electric field between the plates has a magnitude of 200 V m¹. The magnetic field is adjusted so that the ion passes through undeflected. What is the magnitude of the adjusted magnetic field, and the polarity of the M terminal relative to the N terminal? Magnitude of magnetic field Polarity of M relative to N (teslas) A. 0.8 positive B. 0.8 negative C. 1.25 positive D. 1.25 negative