1. [-/2 Points] DETAILS MY NOTES COLFUNPHYS1 21.P.005. PRACTICE ANOTHER Find the direction and magnitude of the minimum velocity of charge $q = +2e$ that will produce the magnetic force $F$ shown in the figure below. (Measure the angle counterclockwise from the $x$ axis in the $xz$ plane. Take the magnitudes of $F$ as $2.01 \times 10^{-11}$ N and the magnitude of $B$ as 1.96 T.) magnitude direction Additional Materials eBook
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Step 1: The magnetic force on a charge moving in a magnetic field is given by: $$F = q \vec{v} \times \vec{B}$$ where q is the charge, v is the velocity of the charge, and B is the magnetic field. Show more…
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The figure shows a particle that carries a charge of q0 = -2.85 x 10^-6 C. It is moving along the +y axis at a speed of v = 4.99 x 10^6 m/s. A magnetic field B of magnitude 3.45 x 10^-5 T is directed along the +z axis, and an electric field E of magnitude 112 N/C points along the -x axis. Determine (a) the magnitude and (b) direction (as an angle within x-y plane with respect to +x-axis in the range (-180°, 180°]) of the net force that acts on the particle.
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The figure shows a particle that carries a charge of $q_{0}=-2.80 \times 10^{-6} \mathrm{C} .$ It is moving along the $+y$ axis at a speed of $v=4.8 \times 10^{6} \mathrm{m} / \mathrm{s} .$ A magnetic field $\overrightarrow{\mathbf{B}}$ of magnitude $3.35 \times 10^{-5} \mathrm{T}$ is directed along the $+z$ axis, and an electric field $\overrightarrow{\mathbf{E}}$ of magnitude $123 \mathrm{N} / \mathrm{C}$ points along the $-x$ axis. Concepts: (i) What forces make up the net force acting on the particle? (ii) How do you determine the direction of the magnetic force acting on the negative charge? (iii) How do you determine the direction of the electric force acting on the negative charge? (iv) Does the fact that the charge is moving affect the values of the magnetic and electric forces? Calculations: Determine the magnitude and direction of the net force that acts on the particle.
19. The magnetic force in figure 5 is given by: A. −14.64 ? ?̂ B. −32.89 ? ?̂ C. +14.64? ?̂ D. +32.89 ? ?̂ E. None of these
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