Identical 4.0-mC charges are placed on the y axis at y = 4.0 m. Point A is on the x axis at x = +3.0 m. Determine the electric potential of point A (relative to zero at the origin).
a. -4.5 kV
b. -2.7 kV
c. -1.8 kV
d. -3.6 kV
e. -14 kV
Question 2
A +4.0-mC charge is placed on the x axis at x = +3.0 m, and a -2.0-mC charge is located on the y axis at y = -1.0 m. Point A is on the y axis at y = +4.0 m. Determine the electric potential at point A (relative to zero at the origin).
a. 6.0 kV
b. 8.4 kV
c. 9.6 kV
d. 4.8 kV
e. 3.6 kV
Surgical needle shapes: (A) taper point; (B) cutting point.
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