In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment, a 1.70 x 104 - m length of wire was let out by the space shuttle Atlantis to generate a motional emf. The shuttle had an orbital speed of 7.70 x 10³ m/s, and the magnitude of the earth's magnetic field at the location of the wire was 5.10 x 10-5 T. If the wire had moved perpendicular to the earth's magnetic field, wat would have been the motional emf generated between the ends of the wire?

You have a closed square loop of wire with length 44cm and a resistance of 750Ω. If there is a magnetic field of strength 0.2T going perpendicular through the loop at what rate (in T /s) does the magnetic field have to change in order to have a current of 0.2A through the loop?

A magnetic field directed into the page changes with time according to B = 0.037 ot² + 1.40, where B is in teslas and t is in seconds. The field has a circular cross section of radius R = 2.50 cm (see figure below). xxxxx xxxxx ****** * I xxx 1 19/ x Rx xxxxx х х xxxxxx x xxxxx Bin P₁ (a) When t = 4.20 s and r₂ = 0.020 0 m, what is the magnitude of the electric field at point P₂? N/C (b) When t = 4.20 s and r₂ = 0.020 0 m, what is the direction of the electric field at point P2? O perpendicular to r₂ and counterclockwise O into the page O perpendicular to r₂ and clockwise O out of the page

If I have a magnetic field pointing upwards with magnitude 8 T, what is the magnetic flux through a closed loop of wire which is 2 m x 3 m? The plane is at a 30 degree angle with the xy plane.   0 Tm2 24 Tm2 48 Tm2 41.56 Tm2

Sodium ions (Na+) move at 0.858 m/s through a bloodstream in the arm of a person standing near a large magnet. The magnetic field has a strength of 0.254 T and makes an angle of 57.0° with the motion of the sodium ions. The arm contains 115 cm³ of blood with a concentration of 4.00 x 1020 Na+ ions per cubic centimeter. If no other ions were present in the arm, what would be the magnetic force on the arm? N

Physics Question

An electron moving with a velocity, v =(4.0 i+ 3.0 j+ 2.0k) x 10^6m/s enters a region where there is a uniform electric field and a uniform magnetic field. The magnetic field is given by B =(1.0 i − 2.0 j + 4.0k) x 10^−2T. If the electron travels through a region without being deflected, what is the electric field?

As a diligent physics student, you carry out physics experiments at every opportunity. At this opportunity, you carry a 1.33 m long rod as you jog at 3.25 m/s, holding the rod perpendicular to your direction of motion. What is the magnitude B of the magnetic field that is perpendicular to both the rod and your direction of motion and that induces an EMF of 0.283 mV across the rod? Express the answer in milliteslas. B = mT

A 35.6-meter-long spacecraft flies past a neutron star, and passes through the neutron star s extremely powerful magnetic field of strength 7.95 x 10^4 T. The spacecraft travels at a velocity of 2.43 km/s in a direction perpendicular to the magnetic field; the spacecraft s long axis is also perpendicular to the magnetic field. What is the induced emf (voltage) between the two ends of the spacecraft?     6.88E+08 V     6.88E+09 V     6.88E+06 V     6.88E+05 V

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?