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Phys 313 Quiz 4

A quadrupole consists of 4 charges, each of +/- 1111 Coulombs, arranged in a cross around the origin; each is x = 0.01 m away from the origin.

Question 1

What is the total electric field strength at the position x = 1 m?

   Answer:   8.99 x 10^9  N/C
             

Question 2

The total electric field strength at x = 2 m is weaker than that at x = 1 m by a factor of ...

             (  1  ) 4       1
   Answer:   ( --- )    =   ---
             (  2  )         16

Question 3

The y component of the electric field at x = 1 m due only to the negative charge at (x = 0 m, y = +0.01 m) is

             
   Answer:   +9.99 x 10^(10) N/C
           

Creative Commons License Copyright © Michael Richmond. This work is licensed under a Creative Commons License.