SOLUTION: In the diagram, q1 = +6.39*10^-9 C. The electric field at point P is zero. What is the value of the charge q2? Q1_______P___________ Q2 •—————•———————

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Question 1151558: In the diagram, q1 = +6.39*10^-9 C. The electric field at point P is zero. What is the value of the charge q2?
Q1_______P____________Q2
•—————•———————-•
|->.424 m<-| |—>.636 m<—|
Answer by ikleyn(52754)   (Show Source): You can put this solution on YOUR website!
.

Your basic equation is


     =    (from the Coulomb law). 


You have all the data to complete your calculation.


Substitute and find .

------------

Note:    is positively charged.

On Coulomb law see this Wikipedia article 

    https://en.wikipedia.org/wiki/Coulomb%27s_law


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