two equal, positive charges, q=2C are located on thex-axis, one at +.3m and the

Question

two equal, positive charges, q=2C are located on thex-axis, one at +.3m and the other at -.3m. A third chargeQ=+4C is located on the y-axis at +.4m. A)Find the magnitude and direction of the resultant (net)force on Q. B)Find the potential at point (0.0, -.4m). two equal, positive charges, q=2C are located on thex-axis, one at +.3m and the other at -.3m. A third chargeQ=+4C is located on the y-axis at +.4m. A)Find the magnitude and direction of the resultant (net)force on Q. B)Find the potential at point (0.0, -.4m).

Explanation / Answer

here both the charges constitute an electric dipole so there should be no potential on the equitorial line of thedipole and the force on the equitorial line can be F =(1/20){q1q2/(x2+d2)}

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