Homework Help: physics

Posted by Kayberlynn on Thursday, February 23, 2012 at 4:09pm.

Two point charges, q1 and q2, are placed 0.30 m apart on the x-axis, as shown in the figure above. Charge q1 has a value of –3.0 x 10–9 C. The net electric field at point P is zero

Q: Calculate the magnitude of charge q2.

Q: Calculate the magnitude of the electric force on q2 and indicate its direction.

Q:Determine the x-coordinate of the point on the line between the two charges at which the electric potential is zero.

Q:How much work must be done by an external force to bring an electron from infinity to the point at which the electric potential is zero? Explain your reasoning.

physics - bobpursley, Thursday, February 23, 2012 at 4:55pm
Where is P?

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