4. A uniform magnetic field points out of this page. A proton and an electron en

Question

4. A uniform magnetic field points out of this page. A proton and an electron enter the region nitially travelling from the bottom of the page to the top of the page with the same velocity. a) The proton initially accelerates left, the electron right. The electron will have a higher final speed due to the acceleration. b) The proton initially accelerates left, the electron right. The electron will have the same final speed. . c) The proton initially accelerates right, the electron left. The electron will have a higher final speed due to the acceleration. d) The proton initially accelerates right, the electron left. The electron will have the same final speed. T/F? lf current is increasing in a single loop of wire, there is no self-inductance because a loop nnot create inductance within itself. . Three identical conducting loops, carrying current I, are placed at different locations de identical uniform magnetic fields. Rank the net force on the loops. (Neglect gravity.)

Explanation / Answer

F=q(VXB)

here,

by using Fleming Left Hand rule,

force direction always perpendicular to both velocity and magnetic field

here,

magnetic field is out of the page

particle are moving upward direction,

force( acceleration ) direction on the electron is right

force( acceleration ) direction on the proton is left

radius of the path is r=m*v/qB

radius of the path depends on the mass of the particle ,

hence,

velocity of the electron is higher

option C is correct

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