In the figure below, a third point charge ? q is placed at point P . What is the
ID: 2269654 • Letter: I
Question
In the figure below, a third point charge ?q is placed at point P. What is the electric force on ?q due to the other two point charges? (Use any variable or symbol stated above along with the following as necessary: k for the Coulomb constant and d.)
magnitude F =
In the figure below, a third point charge ?q is placed at point P. What is the electric force on ?q due to the other two point charges? (Use any variable or symbol stated above along with the following as necessary: k for the Coulomb constant and d.)
Explanation / Answer
F = -kq*q/(d^2) + k*2q*q/{(2d)^2}
F = -(kq^2)/(d^2) + (kq^2)/(2d^2)
F = (kq^2)/(d^2) [-1 +1/2]
F = -1/2(kq^2)/(d^2)