You fly over the north pole of the earth and drop a coin with its surface normal along the polar axis. Which direction, clockwise or counterclockwise, would the earth magnet induce a current on it when you look down the coin from your aircraft?
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- A current-carrying wire is straight up and down, perpendicular to the floor. The magnetic field is running counter-clockwise. What is the direction of the flow of current?I Review Part C A0.32 µC particle moves with a speed of 18 m/s through a region where the magnetic field has a strength of 0.99 T. You may want to review (Pages 773 - 777). At what angle to the field is the particle moving if the force exerted on it is 1.0 x 10-'N? Express your answer using two significant figures. | O You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Previous Answers Request AnswerAn a-particle (i.e., a nucleus of He composed of 2 neutrons and 2 protons) is moving at a speed of 2.1 x 104 m/s along the x-axis. Calculate the magnetic field produced by that particle at a point 2 meters in front of the particle, on the x-axis.
- What would be the magnitude and direction of force FB on an electron (q = -e, me = 9.1 x 10-31 kg) shot in the +y direction with a speed of 4.7 x 106 m/s in a uniform magnetic field B = 2.6 x 10-4 T along +y direction ? FB = 2.4 x 10-16 N away from us, towards the plane of the screen FB = 0.00 N so will maintain its velocity. FB = 1.95 x 10-16 N toward us, away from the plane of the screen FB = 4.9 x 10-11 N away from us, towards the plane of the screen(Figure 1) shows a mass spectrometer, an analytical instrument used to identify the various molecules in a sample by measuring their charge-to- mass ratio q/m. The sample is ionized, the positive ions are accelerated (starting from rest) through a potential difference AV, and they then enter a region of uniform magnetic field. The field bends the ions into circular trajectories, but after just half a circle they either strike the wall or pass through a small opening to a detector. As the accelerating voltage is slowly increased, different ions reach the detector and are measured. Consider a mass spectrometer with a 200.00 mT magnetic field and an 8.0000 cm spacing between the entrance and exit holes. igure + AV d Detector Part A To five significant figures, what accelerating potential difference AV is required to detect the ion O,? The masses of the atoms are shown in the table; the mass of the missing electron is less than 0.001 u and is not relevant at this level of precision. Use…A ring of radius 8.0 cm is placed concentrically around a ring of radius 6.0 cm (see figure below). Each ring carries a current of 4.0 A.(a) What is the magnitude of the magnetic field at the center of the rings if the two currents flow in the same direction?(b) Find the magnitude of the magnetic field if the currents flow in opposite directions?(c) If the outer ring current is counterclockwise and the inner ring current is clockwise what is the direction of the net magnetic field
- A current carrying wire has current flowing in the -x direction. At a point below the wire the direction of the magnetic field is "into the plane" True or False?A positive charge is moving downward in a uniform magnetic. The charge initially is deflected to the right. What is the direction of the magnetic field?a straight, flexible length of copper wire is immersed in a magnetic field that is directed into the page . If the wires current runs at the + x-direction, which way will the wire bend ? which way will the wire bend if the current runs in the -x direction