Question
please help with part C , im confused. Thanx.
Exercise 21.51 Part A What s the magritude of the eledric fed at point P, which is on the postive x-axis at -440 cm? A ring shaped conductor with rad us a -2.20 cm has a soa positive charge -0.129 nC unifomly distributed around it E- 6.97 N/C Submit My Amwers Give Up Correct Part B What is the drecion of the elecric seld at poimt P e-d recion Submit My Answers Give Up Correct Part c A particle th a charge of .. 3.00 5 placed at point P described in part A what is ge man ude of the Iren "certed by te partide atria? 1.89 10 5 dE, dE Incorrect; Try Again; 18 attempts remaining Part D
Explanation / Answer
(C) on charge at P.
F = q E
F = (3 x 10^-6) ( 5.97) = 1.79 x 10^-5 N
this is the force that ring exerts on charge.
from newton's 3rd law, charge will exerts force on ring of same magnitude but in opposite direction.
hence F = 1.79 x 10^-5 N