mt1-2007-soln - Question 1: A proton with kinetic energy K...

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Question 1 : A proton with kinetic energy K = 2×10 6 eV is fired perpendicular to the face of a infinite insulating plate which has a uniform surface charge density σ = 9×10 -6 C/m 2 . (See the figure given below.) a) Find the magnitude and the direction of the electric field ( E ± ) due to the plate. b) Find the magnitude and the direction of the force ( F ± ) on the proton. c) Find the distance “d” that the proton must be fired so that it stops right at the surface of the plate. 0 9×10 -12 C 2 /Nm 2 , e ≈ 1.6×10 -19 C, 1eV ≈ 1.6×10 -19 J) ______________________________________________________________________________
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: Below figure shows an electric quadrupole. It consists of two dipoles with dipole moments that are equal in magnitude but opposite in direction (Both q charges are at z =0). a) Find the electric field ( E ± ) at point P. b) For z >> d , show that the value of electric field ( E ± ) on the axis of quadrupole for a point P a distance z from its center is
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This note was uploaded on 02/01/2010 for the course PHYS PHYS-102 taught by Professor Atillaaydınlı during the Fall '09 term at Bilkent University.

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mt1-2007-soln - Question 1: A proton with kinetic energy K...

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