Two ions X3- and Y+ moving at the same speed enter a uniform magnetic field pendicularly. If the radius produced by X3- and Y+ is in the ratio of 6: 5, what is the ratio of (momentum of X3-ion)/(momentum of Y+ ion)?
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- A long, straight, hollow wire with inner radius 3.0 mm and outer radius 8.ó mm has 2.4 A of current passing through, uniformly distributed throughout its cross-sectional area. Determine the magnitude of the magnetic field by the wire a radial distance of 6.3 mm from its axis. Give your answer in units of µT.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 fieldThe uniform 30 mT magnetic field in figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 3.0 x 106 m/s and at an angle of ô = 30° above the xy-plane. Find the radius r and the pitch p of the electron's spiral trajectory. Z B 4
- A-4.80 uC charge is moving at a constant speed of 6.80 x 105 m/s in the +x-direction relative to a reference frame. At the instant when the point charge is at the origin, what is the magnetic field vector it produces at the following points a point (x 0.500 m, y = 0.500 m, z 0) Select one: B = -1.29x10-77 B = -4.62x10-7 R B = -7.15x10-7 R B = -2.12x10-7↑ B = 3.17x10 6An electron moves in a circular path with a speed of 1.49 x 10' m/s in the presence of a uniform magnetic field with a magnitude of 1.88 mT. The electron's path is perpendicular to the field. (a) What is the radius (in cm) of the circular path? cm (b) How long (in s) does it take the electron to complete one revolution? SAn electron is traveling with a constan velocity vo in the presence of a uniform electric mg field E-Ek, where E- e (Here, m denotes the mass of the electron and e denotes its charge. g denotes the acceleration due to gravity). Gravity acts in the -Z direction. At t=0, when the electron is at the origin, a uniform magnetic field BB+BJ is switched on. Here. B, and B, are fixed positive BB. The coordinates of the point where the electron intersects the X-Y plane constants and B for the first time after t=0 are given by: 2amy B Zamy BB e (A) (C) 2 e B 2AMY, B B (B) (D) 2amv, B.B. e B 2rum BB B Lamy B.B B 2am B B
- An electron and a proton, moving side by side at the same speed, enter a 0.020-T magnetic field. The electron moves in a circular path of radius 7.5 mm. Determine the radius of the proton.An electron moves in a circular path with a speed of 1.36 x 107 m/s in the presence of a uniform magnetic field with a magnitude of 1.84 mT. The electron's path is perpendicular to the field. (a) What is the radius (in cm) of the circular path? cm (b) How long (in s) does it take the electron to complete one revolution? S Read ItA toroid with a square cross-section has an inner radius of 20 cm and an outer radius of 30 cm and consists of 800 turns. Determine the ratio of the magnetic field strength at the inner radius to the magnetic field strength at the outer radius Binner/Bouter.
- A metal rod of 2.50m long stands vertically near the earth’s equator carrying a current of10.0A away from the ground. The earth’s magnetic field at the location has a magnitude of 0.500 10 to negative 4th power Tand points directly to the north. (a) what is the smallest angle between the current inthe rod and the magnetic field of Earth at that location? (b) What is the magnitude of the magneticforce on the rod? (c) What is the direction of the magnetic force on the rod?The figure shows the cross section of a long conducting cylinder with inner radius a= 2cm and outer radius b-4cm. the cylinder carries a current out of the page and the current density in the cross section is given by j=cr^2 with c=3x10^6 A/m^4 and r in meters What is the magnetic field B at a point 3 cm from the central axis of the cylinder?take ur time pls