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Problem 3: Three point charges, Q1, Q2 and Q3, are located at the corners of two adjacent squares, with the squares sharing one edge and two corners, as shown in the figure below. The electric field produced by these three charges vanishes (E = 0) at point P, also located at one of the corners of the squares, as also shown below. Which one of the following relations between Q1, Q2 and Q3 is correct? Hints: (1) The E-field vector produced by a single point charge, Q, is given by an equation that looks something like this: E = (kQ/r²)f. Think carefully about the meaning of r and î in this equation! (2) E = 0 means: E = 0, Ey = 0, E, = 0. Q2 Q1 Qз (5V5/4) Q2 -(5/4) Q2 (5/5/8) Q2 (5/4) Q2 -(5/5/8) Q2 (5/5/2) Q3 (A) Q1 (B) Q1 (C) Q1 (D) Q1 (E) Q1 -5 Q3 (5V5) Q3 5 Q3 -(5/5) Q3

Problem 3: Three point charges, Q1, Q2 and Q3, are located at the corners of two adjacent squares, with the squares sharing one edge and two corners, as shown in the figure below. The electric field produced by these three charges vanishes (E = 0) at point P, also located at one of the corners of the squares, as also shown below. Which one of the following relations between Q1, Q2 and Q3 is correct? Hints: (1) The E-field vector produced by a single point charge, Q, is given by an equation that looks something like this: E = (kQ/r²)f. Think carefully about the meaning of r and î in this equation! (2) E = 0 means: E = 0, Ey = 0, E, = 0. Q2 Q1 Qз (5V5/4) Q2 -(5/4) Q2 (5/5/8) Q2 (5/4) Q2 -(5/5/8) Q2 (5/5/2) Q3 (A) Q1 (B) Q1 (C) Q1 (D) Q1 (E) Q1 -5 Q3 (5V5) Q3 5 Q3 -(5/5) Q3

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Problem 3: Three point charges, Q1, Q2 and Q3, are located at the corners of two adjacent squares, with the squares sharing one edge and two corners, as shown in the figure below. The electric field produced by these three charges vanishes (E = 0) at point P, also located at one of the corners of the squares, as also shown below. Which one of the following relations between Q1, Q2 and Q3 is correct? Hints: (1) The E-field vector produced by a single point charge, Q, is given by an equation that looks something like this: E = (kQ/r²)f. Think carefully about the meaning of r and î in this equation! (2) E = 0 means: E = 0, Ey = 0, E, = 0. Q2 Q1 Qз (5V5/4) Q2 -(5/4) Q2 (5/5/8) Q2 (5/4) Q2 -(5/5/8) Q2 (5/5/2) Q3 (A) Q1 (B) Q1 (C) Q1 (D) Q1 (E) Q1 -5 Q3 (5V5) Q3 5 Q3 -(5/5) Q3
Transcribed Image Text:Problem 3: Three point charges, Q1, Q2 and Q3, are located at the corners of two adjacent squares, with the squares sharing one edge and two corners, as shown in the figure below. The electric field produced by these three charges vanishes (E = 0) at point P, also located at one of the corners of the squares, as also shown below. Which one of the following relations between Q1, Q2 and Q3 is correct? Hints: (1) The E-field vector produced by a single point charge, Q, is given by an equation that looks something like this: E = (kQ/r²)f. Think carefully about the meaning of r and î in this equation! (2) E = 0 means: E = 0, Ey = 0, E, = 0. Q2 Q1 Qз (5V5/4) Q2 -(5/4) Q2 (5/5/8) Q2 (5/4) Q2 -(5/5/8) Q2 (5/5/2) Q3 (A) Q1 (B) Q1 (C) Q1 (D) Q1 (E) Q1 -5 Q3 (5V5) Q3 5 Q3 -(5/5) Q3
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