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b.
c.
d. All of the above
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College Physics
- (a) An oxygen16 ion with a mass at 2.661026kg travels at 5.00106m/s perpendicular to a 1.20T magnetic field, which makes it move in a circular arc with a 0.231-m radius. What positive charge is on the ion? (b) What is the radio of this charge to the charge of an electron? (c) Discuss why the radio found in (b) should be an integer.arrow_forward(a) A physicist performing a sensitive measurement wants to limit the magnetic force on a moving charge in her equipment to less than 1.001012N. What is the greatest the charge can be if it moves at a maximum speed of 30.0 m/s in the Earth’s field? (b) Discuss whether it would be difficult to limit the charge to less than the value found in (a) by competing it with typical static electricity and noting that static is often absent.arrow_forwardAn electron in a TV CRT moves with a speed at 6.00107m/s, in a direction perpendicular to the Earth’s field, which has a strength of 5.00105T. (a) What strength electric field must be applied perpendicular to the Earth’s field to make the election moves in a straight line? (b) If this is done between plates separated by 1.00 cm, what is the voltage applied? (Note that TVs are usually surrounded by a ferromagnetic material to shield against external magnetic fields and avoid the need for such a correction.)arrow_forward
- (a) At what speed will a proton move in a circular path of the same radius as the electron in Exercise 22.12? (b) What would the radius of the path be it the proton had the same speed as the electron? (c) What would the radius be if the proton had the same kinetic energy as the electron? (d) The same momentum?arrow_forwardWhat is the maximum force on an aluminum rod with a 0.100C charge that you pass between the poles of a 1.50T permanent magnet at a speed of 5.00 m/s? In what direction is the force?arrow_forwardA spacecraft is in 4 circular orbit of radius equal to 3.0 104 km around a 2.0 1030 kg pulsar. The magnetic field of the pulsar at that radial distance is 1.0 102 T directed perpendicular to the velocity of the spacecraft. The spacecraft is 0.20 km long with a radius of 0.040 km and moves counter-clockwise in the xy-plane around the pulsar. (a) What is the speed of the spacecraft? (b) If the magnetic field points in the positive z-direction, is the emf induced from the back to the front of the spacecraft or from side to side? (c) Compute the induced emf. (d) Describe the hazards for astronauts inside any spacecraft moving in the vicinity of a pulsar.arrow_forward
- Unreasonable Results A charged particle having mass 6.641027kg (that of a helium atom) moving at 8.70105m/s perpendicular to a 1.50T magnetic field travels in a circular path of radius 16.0 mm. (a) What is the charge of the particle? (b) What is unreasonable about this result? (c) Which assumptions are responsible?arrow_forward(a) A physicist performing a sensitive measurement wants to limit the magnetic force on a moving charge in her equipment to less than 1.001012N. What is the greatest the charge can be if it moves at a maximum speed of 30.0 m/s in Earth's field? (b) Discuss whether it would be difficult to limit the charge to less than the value found in (a) by comparing it with typical static electricity' and noting that static is often absent,arrow_forward1. What is the maximum magnitude of the force on an aluminum rod with a 5.25 n-C charge that you pass between the poles of a 2.50-T permanent magnet at a speed of 15.00 m/s? In what direction is the force?arrow_forward
- field E = Suppose we have a kangaroo with charge q and velocity v = v(Î + 1). The kangaroo is immersed in an electric Ej and magnetic field B = Bĵ. What is the force experienced by the kangaroo (assume that the kangaroo is a point particle)? ○ A. B. O C. qEj ○ D. q[Eĵ +vB(îĵ +ĵ³)] q(Eĵ + vBk) q(Ej – vBk)arrow_forward06 A charged particle (9 = 2C, m = 2kg) moves in a magnetic field B = Boz, Where Bo = 27. There is no electric field. It circlar path. to Imo moves in NO r(t) = r cos (wt) x + rsin (cut)^ If the total energy is 2J, what is the angular velocity w and radius r?arrow_forward4. A capacitor stores energy within a 1 point dielectric between the conducting plates in the form of A. electric field B. electric force C. magnetic field D. polarization 5. Which of the following is the unit 1 point of capacitance? A. C/N.m B. C²/N.m C. N.m/C² D. N.m²/C² 6. Which of the following units is the 1 point Farad equal? A. CV² B. J/V² C. J/C D. C/V 7. When is a capacitor is fully charged? A. when the voltage across the plates is 75% of the input voltage B. when the voltage through the capacitor is the same as the voltage source C. when the voltage across its plates is half of the voltage from the ground to one of its plates D. when the current through the capacitor is directly proportional to the area of the plate 8. Two parallel plate capacitors A and B are given. Capacitor A has a capacitance Co and capacitor B has plates with twice the area and twice the separation distance of capacitor A. What is the capacitance of B? A. ¼Co B. ½Co C. Co D. 2Co 9. What if…arrow_forward
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning