Answer in units of m. At some point and some instant, the electric field has has a value of 204 V/m. Calculate the magnitude of the magnetic field at this point and this instant. Answer in units of T.
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- The straight wire that has been bent into a perfect circle has been placed in a perpendicular magnetic field has a length of 30.0 cm. The magnetic field is changing at a rate of 13 T/s. If the resistance of the wire loop is 3.6 Ω, the electric current in the wire will be:Currents in dc transmission lines can be 100 A or higher. Some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. For a line that has current 130 A and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? Express your answer in tes Express your answer in teslas. B = Submit Part B B BE = Submit What magnetic field does the line produce at ground level as a percent of the earth's magnetic field, which is 0.50 G. Express your answer as a percentage. ΓΕΙΑΣΦ Part C OO ΑΣΦ I Request Answer Request Answer Is this value of magnetic field cause for worry? ? T ? % No. Since this field does not differ a lot from the earth's magnetic field, it would be expected to have almost the same effect as the earth's field. Yes. Since this field does not differ a lot from the earth's magnetic field, it would be expected to have almost the same effect as the earth's field. No. Since this field is much…A straight conductor of length I moves with an acceleration a = 0.1 ms2 at right angles to a magnetic field of uniform strength B = 10 T. The e.m.f. between the ends of the conductor increased from 0 to 5 V during the first 20 s after the beginning of motion. Calculate I and give your answer in SI units.
- A 23.9-meter-long spacecraft flies past a neutron star, and passes through the neutron stars extremely powerful magnetic field of strength 4.08 x 10^4 T. The spacecraft travels at a velocity of 7.35 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? 7.17E+09 V 7.17E+06 V 7.17E+05 V 7.17E+08 VCrossed electric and magnetic fields are established over a certain region. The magnetic field is 0.590 T vertically downward. The electric field is 3.48 × 106 V/m horizontally east. An electron, traveling horizontally northward, experiences zero net force from these fields and so continues moving in a straight line. What is the electron’s speed?A 28.6-meter-long spacecraft flies past a neutron star, and passes through the neutron star s extremely powerful magnetic field of strength 1.63 x 10^4 T. The spacecraft travels at a velocity of 2.32 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? 1.08E+08 V 1.08E+09 V 1.08E+06 V 1.08E+05 V
- A large jetliner with a wingspan of 40 m flies horizontally and due north at a speed of 300 m/s in a region where the magnetic field of the earth is 60 micro T directed 50 degrees below the horizontal as shown in the figureВ X X X X X X X . An electron traveling v = 2.50 ×10° m/s horizontally to the east in a plane perpendicular to a uniform B = 0.75 T magnetic field. a) Find direction of the force on this electron. Please explain X X X X X X X ►X X X X X X X V X X X X X X X your result in details. X X X X X X X b) Find the magnitude of the force on this electron. X X X X X X XConsiderable scientific work is currently under way to determine whether weak oscillating magnetic fields such as those found near outdoor electric power lines can affect human health. One study indicated that a magnetic field of magnitude 1.40 x 10-³ T, oscillating at 60 Hz, might stimulate red blood cells to become cancerous. If the diameter of a red blood cell is 7.6 μm, determine the maximum emf that can be generated around the perimeter of the cell. V
- As a diligent physics student, you carry out physics experiments at every opportunity. At this opportunity, you carry a 1.15 m long rod as you jog at 3.17 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 0.287 mV across the rod? Express the answer in milliteslas. B = mTA proton enters a region of uniform magnetic field with a velocity of v-7.00x106 m/s. If the proton moves in a circular path of radius 4.74 cm, what is the intensity of the magnatic field (in T) in that region? O 1.54 O 1.28 O 1.80 O 1.99 O 1,41Problem 4. A magnetic field directed into the page changes with time according to B = 2.0t³ - 4.0ť² + 3.0, where B is in tesla and t is in seconds. The field has a circular cross section of radius R = 2.5 cm (see figure below). (a) When t= 1.00 s and r₁= 5.0 cm, what are the magnitude and the direction of the electric field at point P₁? (b)When t = 2.00 s and r2 = 2.0 cm, what are the magnitude and the direction of the electric field at point P₂? xxxxx xxxxx xxxx** ** xxx T97 xxx R x xxxxx ****** xxxxx Bin n P₁