A particle of mass "M" and charge "+Q" Travels at a velocity "V" in a plane perpendicular to a Magnetic Field of magnitude "B" as shown in the Picture. The particle will experience motion on a circular path. a. What is the plane of the circular path? (XY, XZ or YZ) Explain why. b. Start with Newton's 2nd law and find the Radius of the circular path. c. Is the particle moving clockwise or counterclockwise? Explain. d. Find the time it will take to complete one full revolution if the particle is a proton traveling at 0.1% the speed of light, in a 0.5 T magnetic field Assume similar conditions as problem 1 but now the proton, moves along the magnetic field undeflected. This new behavior can only be explained if there exist an external electric field in addition to the magnetic field. What is the magnitude and direction of such field? (you can disregard gravity)

8. The US Navy is developing a railgun that uses magnetic field repulsion. The railgun can propel a 980 N projectile at seven times the speed of sound. How much energy is stored in this magnetic field? Assume a complete conversion of energy and a speed of sound of 340 m/s. A. 119 MJB. 283 MJC. 578 MJD. 2780 MJ

A hydroxide ion (OH−) in a glass of water has an average speed of about 600 m/s. A. Determine the magnitude of the electrical force between the hydroxide ion (charge -e) and a positive ion (charge +e) that is 1.0×10−8 m away (about the separation of 30 atoms). B. Determine the magnitude of the maximum magnetic force that Earth's 3.0×10−5 T magnetic field can exert on the ion.

Consider a long, horizontal Large Wire with current of 10 A running through it. We want to levitate a horizontal, thin, 0.50 m length of wire above it. If the thin wire has a mass of 10 grams, and a current of 300 mA, how far above the Large Wire will it hover (net force of zero) due to magnetic and gravitational forces? A. If the thin wire hovers above the Large Wire due to their magnetic fields, are their currents going the same direction, or opposite directions. Explain. B. Draw a diagram and label the directions of currents, and all other relevant quantities and vectors. C. Find the distance above the Large Wire the small thin wire will hover (net force of zero). D. Would your answers to parts A and C change if we wanted to find a distance below (rather than above) the Large Wire that the smaller thin wire could hover, due to their magnetic fields. Explain. Don't calculate any values but draw a new diagram and explain how this situation compares to the problem above.

A wire having a mass per unit length of 0.002 g/m carries an unknown current horizontally to the right. The wire is in a magnetic field of 0.10 T pointing into the page. a.   Create a drawing and a free body diagram for this situation What current in the wire is needed in order for the wire to be in magnetic levitation?

Force on a Moving Charge: We observe that a moving charged particle experiences no magnetic force. From this we can definitely conclude that Group of answer choices A. either no magnetic field exists or the particle is moving perpendicular to the field. B. the particle is moving at right angles to the magnetic field. C. the particle must be moving parallel to the magnetic field. D. no magnetic field exists in that region of space. E. either no magnetic field exists or the particle is moving parallel to the field.

Which of the following statements is TRUE about mapping magnetic field lines around a bar magnet using a compass? A. The experiment is wrong because the magnetic field being detected by the compass is the resultant of the bar magnet's magnetic field and the Earth's magnetic field. B. The magnetic field being detected by the compass is the resultant of the bar magnet's magnetic field and the Earth's magnetic field. C. The magnetic field near a bar magnet is very much larger compared to the Earth's magnetic field, thus, the mapped magnetic field using a compass is indeed from the bar magnet only. D. The magnetic field lines around a bar magnet are effectively estimated by the experiment because the concrete walls isolate the inside of a laboratory or a house to the Earth's magnetic field. E. The intensity of the bar magnet's magnetic field can be determined by the compass.