Four Tiny Charged Particles (Two Having a Charge +Q and Two

question 9

Multiple Choice

Four tiny charged particles (two having a charge +Q and two having a charge -Q) are distributed on the x- and y-axes as shown in the figure. Each charge is equidistant from the origin. In which direction is the net electric field at the point P on the y-axis?

• A) directly up (in the +y direction)
• B) directly left (-x direction)
• C) upwards and towards the left
• D) upwards and towards the right
• E) The net field is zero, so there is no direction.

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