You are designing a device that will change the direction of an incoming beam of electrons by 90 degrees (from +x to +y). You plan on doing so by shooting the beam into a square region of uniform magnetic field, as shown in the figure (qfig2.png) below. The incoming speed of the electrons is v=5×10° m/s, and they enter the region of uniform magnetic field 10 cm from the top of the region. Find the magnetic field strength in microteslas needed to deflect the particles by 90 degrees. Again, give your answer in microteslas to 1 decimal place. 10 cm B

You are designing a device that will change the direction of an incoming beam of electrons by 90 degrees (from +x to +y). You plan on doing so by shooting the beam into a square region of uniform magnetic field, as shown in the figure (qfig2.png) below. The incoming speed of the electrons is v=5×10° m/s, and they enter the region of uniform magnetic field 10 cm from the top of the region. Find the magnetic field strength in microteslas needed to deflect the particles by 90 degrees. Again, give your answer in microteslas to 1 decimal place. 10 cm B

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 28P: An electron in a TV CRT moves with a speed of 6.0107 m/s, in a direction perpendicular to Earth's...

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You are designing a device that will change the direction of an incoming beam of electrons by 90 degrees (from +x to +y). You plan on doing so by shooting the beam into a square region of uniform magnetic field, as shown in the figure (qfig2.png) below. The incoming speed of the electrons is v=5×10° m/s, and they enter the region of uniform magnetic field 10 cm from the top of the region. Find the magnetic field strength in microteslas needed to deflect the particles by 90 degrees. Again, give your answer in microteslas to 1 decimal place. 10 cm B
A rocket zooms past the earth at v= 2.0 x 10 m/s. Scientists on the rocket have created the electric and magnetic fields shown in the figure.(Figure 1) Assume that B = 0.60 T and E= 6.0x105 V/m. Figure B E 2.0 x 10 m/s 1 of 1 What is the electric field strength measured by an earthbound scientist? Express your answer using two significant figures. 5 ΑΣΦ E = Submit Part B X Incorrect; Try Again; One attempt remaining Check your signs. O Up -6.105 What is the direction of the electric field measured by an earthbound scientis Down Submit Part C O Left O Right O Into the page O Out of the page Previous Answers Request Answer B = 0.60 T Submit ? Request Answer What is the magnetic field strength measured by an earthbound scientist? Express your answer using two significant figures. Correct Previous Answers V/m
A beam of protons is directed in a straight line along the +z direction through a region of space in which there are crossed electric and magnetic fields. The electric field is 450 V/m in the -y direction and the protons move at a constant speed of 10^5 m/s. 1)What must be the magnitude of the magnetic field such that the beam of protons continues along its straight-line trajectory? (Express your answer using two significant figures.)
A closed current path is made from two different circular arcs as shown in the figure below. The larger arc has radius 3.0 cm and covers one quarter of the circle, and the smaller arc has radius 1.0 cm and covers the remaining three quarters of the circle. If the current is 1.5 A going counterclockwise, what is the magnitude of the B-field at the center of the circular arcs? Express your answer to the nearest µT.
Problem 4: An electron travels with speed 1.0 × 107 m/sec between the two parallel charged plates shown in the figure below. The plates are separated by 1.0 cm and are charged by a 200 V battery. Thus, the magnitude of the electric field between the plates is E = 20000 V/m and it points in the downwards direction. What magnetic field strength and direction will allow the electron to pass between the plates without being deflected? Recall that the electric force is Fe = qĒ. Answer: B = -(0.002 T) or B = 0.002 T into the page. +++++ + + + + + 1.0 cm
A linear wire is placed such that the middle coincides with the origin of the Cartesian coordinate as shown in Figure 2. An infinite wire carries a current of 10 A in positive x-direction. Find the magnetic field intensity H at R (0,0,4).
A charged particle moves into a region of uniform magnetic field, goes through half a circle, and then exits that region. The particle is either a proton or an electron (you must decide which). It spends 130 ns in the region. What is the magnitude of B? Give your answer in T. (moroton=1.672x10-27 kg, melectron-9.11x10-31 kg, e-1.602x10-19 C) Yüklü bir parçacık, düzgün bir manyetik alan bölgesine girip yarım çember çizerek alandan çıkmıştır. Parçacık ya bir proton ya da bir elektrondur (hangisidir, kendiniz karar veriniz). Parçacık manyetik alanın olduğu bölgede 130 ns kaldığına göre B'nin büyüklüğü T cinsinden nedir? (mproton=1.672x10-27 kg, malektron-9.11x10-31 kg, e=1.602x10-19 C) Yanıtınız
A metal cube with sides of length a is moving at velocity v=voj across a uniform magnetic field B = Bok. The cube is oriented so that four of its edges are parallel to its direction of motion (i.e., the normal vector of two faces are parallel to the direction of motion). (Figure 1) Figure Bo N 1 of 1 Vo Part A Find E, the electric field inside the cube. Express the electric field in terms of vo, Bo, and unit vectors (i, j, and/or k). E = Submit Part B V ΑΣΦ -î Request Answer Now, instead of electrons, suppose that the free charges have positive charge q. Examples include "holes" in semiconductors and positive ions in liquids, each of which act as "conductors" for their free charges. www. J? If one replaces the conducting cube with one that has positive charge carriers, in what direction does the induced electric field point? Submit Request Answer
Figure 1: CRT with coils in Helmholtz configuration. The hot cathode emits electrons which are then accelerated through potential difference Vacc. When the electrons enter the magnetic field B, which is perpendicular to their velocity, they move on a circular path with radius r. The magnetic field is due to coils in Helmholtz configuration (2 coils separated distance that equals their radius). The magnetic field due to one of the coils with radius R, at a point on the axis distance z away from the center of the coil, was found using the Biot-Savart law: HOIR?N B1 2(R2 + z2)ž
Solve the following: A proton (of mass, m=1.67 x 10-27kg) starts moving in a circular path of radius 4 cm when it enters perpendicular to the Earth's magnetic field of 4 x 10-5 T. B in Calculate the speed of the cosmic ray proton in (m/s) ?
Ex. 8: In a velocity selector, the intensity of electric field is 2 x 104 V/m and the strength of magnetic field is 0.01 Wb/m?. Find the speed of charged particle which passes undeflected through the.velocity selector.
Q1: What current density would produce the vector potential, Ã = k r ê (where k is a constant), in spherical coordinates. Q2: Find the magnetic field at the centre of an Equilateral triangle loop which carries a steady current I. Let R be the distance from centre to side.