20 A +4.0-AC charge is placed on the x axis at x +3.0 m, and a -2.0-AC charge is
ID: 3896651 • Letter: 2
Question
20 A +4.0-AC charge is placed on the x axis at x +3.0 m, and a -2.0-AC 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 3.6 kV 21 Identical 4.0-uC charges are placed on the y axis at y t4.0 m. Point A is on the x axis at x 3+3.0 m. Determine the electric potential of point A (relative to zero at the origin a. 4.5 kV b. 2.7 kV 1.8 kV d. 3.6 kV 14 kV 22. Four identical point charges (+6.0 nc) are placed at the corners of a rectangle which measures 6.0 m x 8.0 m. If the electric potential is taken to be zero at infinity, what is the potential at the geometric center of this rectangle? a. 58 V b. 63 V c. 43 V d. 84 V 11 V 23. Three identical point charges (+2.0 nC) are placed at the corners of an equilateral triangle with sides of 2.0-m length. If the electric potential is taken to be zero at infinity, what is the potential at the midpoint of any one of the sides of the triangle? 16 V b. 10 V c. 70 V d. 46 V 44 VExplanation / Answer
20)b
21)b
22)d
23)a
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