Suppose we have two particles, both with charge q, both moving in the + i direction with velocity v, one of them located at (0,0,1), the other at (0,0,2). What is the magnetic field at (0,1,0)?
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![Suppose we have two particles, both with charge q, both moving in the
+ i direction with velocity v, one of them located at (0,0,1), the other at (0,0,2). What
is the magnetic field at (0,1,0)?
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- An electron with a speed of 4.1 x 106 m/s moves with a circle in a plane to a uniform magnetic field. If the radius o fhte circle is 2.4 cm, then what is the magnitude of the field?A singularly-charged ion (i.e. a neutral atom which has gained one electron) with kinetic energy of 7x10−15 J follows a circular path of radius 0.6m when placed in a magnetic field of 0.5T. (Note that the charge of an electron is e = 1.6 x 10−19 C.) a) Using the fact that the ion is going in a circular motion in a magnetic field, what is the ion’s momentum (in kg.m/s)? b) What is the ion’s speed (in m/s)? c) What is the ion’s mass (in kg)? d) An electric field is added to the experiment and adjusted so that the ion passes through without any deflection. What is the magnitude of this electric field (in T)?An electron is launched at a speed of v at an angle of 0 north of east into a region with a uniform magnetic field. The magnitude of the magnetic field is B and the field is pointing due east. a) Find the radius of curvature of the trajectory. b) Find the pitch (the distance traveled during one revolution, perpendicular to the plane of circular motion) of the trajectory.
- A long straight wire is oriented left-right on the surface of the page as shown. It has an unknowncurrent through it that produces a magnetic field. You measure the magnetic field at a locationd= 1.6 cm above the wire and find it to be 28 uT pointing into the page. What is the magnitude of the current flowing through the wire? What is the direction of the current in the wire? ( state the direction as up, down, left, right, into or out of the page)An electron in the beam of a cathod-ray tube is accelerated by a potential difference of 2.14 kV . Then it passes through a region of transverse magnetic field, where it moves in a circular arc with a radius of 0.190 m . What is the magnitude of the field?A long straight wire suspended in the air carries a conventional current of 7 amperes in the -x direction as shown (the wire runs along the x-axis). At a particular instant an electron at location m has velocity m/s. z out (a) What is the magnetic field due to the wire at the location of the electron? B = tesla (b) What is the magnetic force on the electron due to the current in the wire? F= N (c) If the moving particle were a proton instead of an electron, what would the magnetic force on the proton be? F =