Question 23 is A but im confused The diagrams show a charged particle, charged p

Question

Question 23 is A but im confused

The diagrams show a charged particle, charged positively in three cases and charged negatively in the other two, moving into a region of uniform magnetic field with the vector direction of the magnetic field indicated by arrows or crosses. (recall that the crosses represent a will direction perpendicular and into the page.) In which of the five cases the charged particle initially be deflected up toward the top of the page as it enters the magnetic field region? A b c d e Sections of two long, straight current-carrying wires are shown as they pass along two edges of a cube with the directions of the currents in the indicated. Vectors 1, 4, and 5 are along the edges of the cube, vector 2 is in the plane of one face of the cube vector 3 is opposite in direction from vector 5. The vector that indicates the resultant magnetic field at the corner of the cube is: 1 2 3 4 5 A solid conducting sphere of radius r_s, is placed concentrically inside a conducting spherical shell of inner radius r_s, and outer radius r_2. The inner conducting sphere carries a rest charge -Q while outer condition think shell radius thick shell carries a net charge +Q, The surface charge density for r = r_j is

Explanation / Answer

The direction of the magnetic force F is perpendicular to the plane formed by v and B, as determined by the right hand rule. The right hand rule states that: to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the right hand in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.

from right hand thumb rule answer should be d

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