Simple point charge location problem

In summary, if a negative point charge is placed at point P, which is equidistant from two point charges +Q/-Q, the net electrical force exerted on it by the charges will be directly upward. This is because the -Q charge will repel it in the x-axis and the +Q charge will attract it in the x-axis, creating a net upward force.
  • #1
kirby2
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Point P in the figure is equidistant from two point charges +Q/-Q of equal magnitude. If a negative point charge is placed at P without moving the original charges, the net electrical force the charges +Q/-Q will exert on it is?

figure: http://goo.gl/EAADC

ATTEMPT: i think P will move directly upward because the -Q charge will repel it in the x-axis and the +Q will attract it in the x so there is no x movement. However, since these forces are in linear, both of them do have an upward components as well. This is why i think the answer is "directly upward." Is this right?
 
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  • #2
Yes, you are correct. But think in terms of forces, not 'movement'.
 

What is the "Simple point charge location problem"?

The Simple Point Charge Location Problem is a mathematical problem in electrostatics that involves determining the location of a single point charge in space based on the electric field it creates and the electric potential at various points in space.

What is the significance of the Simple Point Charge Location Problem?

This problem is important in understanding the behavior of electric fields and potential in space. It is also used in various applications, such as in particle physics experiments and in the design of electronic components.

What are the assumptions made in the Simple Point Charge Location Problem?

The problem assumes that the point charge is the only source of electric field in the given space, and that the charge is stationary. It also assumes that the electric field and potential can be described using classical electrostatics equations.

What are the steps involved in solving the Simple Point Charge Location Problem?

The first step is to gather information about the electric field and potential at different points in space. Then, using the mathematical equations for electric field and potential, the location of the point charge can be determined by solving for the unknown variables.

What are some practical applications of the Simple Point Charge Location Problem?

This problem is used in various fields, such as particle physics, electronic engineering, and geophysics. It can also be applied in the design of sensors and detectors, as well as in the analysis of electric fields in biological systems.

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