Two point charges are placed on the x-axis: 0.500 µC at x = 0 and -0.200 µC at x = 20.0 cm. At what point(s), if any, on the x-axis is the electric potential equal to zero? (Give your answer in the form of a comma-separated list. Enter DNE if no such point exists.)

A uniform electric field of magnitude 295 V/m is directed in the negative y direction as shown in the figure below. The coordinates of point  are  (−0.300, −0.750) m,  and those of point  are  (0.750, 0.450) m.  Calculate the electric potential difference VB − VA using the dashed-line path.

In the figure a plastic rod having a uniformly distributed charge Q = -20.5 pC has been bent into a circular arc of radius 1.94 cm and central angle 120°. With V = 0 at infinity, what is the electric potential in volts at P, the center of curvature of the rod? R Units V Number i 9.51

Three electric charges -5 nC and 10 nC and +5 nC and are separated with a distance of 40.0 cm from eachother and are aligned on the x-axis. Find the total electric potential differences at point p at 40 cm from the last charge on the x-axis.

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Two point charges Q₁ = - -2.92 μC and Q2 = 2.52 µC are shown in the figure. Q₁ is located at (-2.1 cm, 0.0 cm) while Q2 is at (0.0 cm, — 2.6cm)). Use k = 9.0 × 10⁹ Nm²/C² (A) Find the electric potential at the origin. V = (B) If a -2.81 nC charge with a mass of 12.3 g is released from rest at the origin, how fast will it be moving when it is very far away from the charges? V = (C) If a proton is released from rest very far away from the charges shown above, how fast would it be moving at the origin? V =