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lacar213
Feb4-09, 01:02 PM
1. The problem statement, all variables and given/known data
A particle with charge +7.88 μC is placed at the fixed position x = 3.00 m in an electric field of uniform strength 300 N/C, directed in the positive x direction. Find the position on the x axis where the electric field strength of the resulting configuration is zero.


2. Relevant equations
E= K*Q / r^2


3. The attempt at a solution
I set up the equation with E = 0 but I'm not sure how you can solve it now for R since e = 0

Dadface
Feb4-09, 02:54 PM
Find a value for r such that E becomes equal and opposite to 300N/C ie a point where the 2 fields cancel to zero.