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Problem 3: A q₁ = -10.0 nC point charge and a q2 = +20.0 nC point charge are 15 cm apart on the x-axis. 1. What is the electric potential at the point on the x-axis where the electric field is zero? 2. What is the electric field at the point on the x-axis, between the charges, where the electric potential is zero? a) In the figure below, where could a point with E = 0 be located (to the left, to the right, or between the charges)? If the distance between this point and q₁ is r, what should its distance from ¹92 be? (use 1921/1911: = 2 and the fact that electric field strength is proportional to q/r2) Mark the point E = 0 in the figure and compute its coordinate.

Problem 3: A q₁ = -10.0 nC point charge and a q2 = +20.0 nC point charge are 15 cm apart on the x-axis. 1. What is the electric potential at the point on the x-axis where the electric field is zero? 2. What is the electric field at the point on the x-axis, between the charges, where the electric potential is zero? a) In the figure below, where could a point with E = 0 be located (to the left, to the right, or between the charges)? If the distance between this point and q₁ is r, what should its distance from ¹92 be? (use 1921/1911: = 2 and the fact that electric field strength is proportional to q/r2) Mark the point E = 0 in the figure and compute its coordinate.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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can you help me with Part D, thank you so much

Problem 3: A q₁ = -10.0 nC point charge and a q2 = +20.0 nC point charge are 15 cm apart on the x-axis. 1. What is the electric potential at the point on the x-axis where the electric field is zero? 2. What is the electric field at the point on the x-axis, between the charges, where the electric potential is zero? a) In the figure below, where could a point with E = 0 be located (to the left, to the right, or between the charges)? If the distance between this point and q₁ is r, what should its distance from 92 be? (use 1921/191] = 2 and the fact that electric field strength is proportional to q/r²) Mark the point E = 0 in the figure and compute its coordinate. 8-10nC 82=20nc → x=L= 15 cm X=O b) Compute the electric potential at the point E = 0 as a sum of potentials created in that point by charges 91 and 92. c) In the figure below, mark the point between the charges where the electric potential is zero (V = 0). If you just use q21/1911 = 2 and the fact that electric potential is proportional to q/r, the calculation should be very simple. ₁-10nC 2=20nC XEO x=L= 15 cm d) What is the direction of the electric field E at the point V = 0 (draw the vector in the figure). Compute its magnitude and express E in the vector form.
Transcribed Image Text:Problem 3: A q₁ = -10.0 nC point charge and a q2 = +20.0 nC point charge are 15 cm apart on the x-axis. 1. What is the electric potential at the point on the x-axis where the electric field is zero? 2. What is the electric field at the point on the x-axis, between the charges, where the electric potential is zero? a) In the figure below, where could a point with E = 0 be located (to the left, to the right, or between the charges)? If the distance between this point and q₁ is r, what should its distance from 92 be? (use 1921/191] = 2 and the fact that electric field strength is proportional to q/r²) Mark the point E = 0 in the figure and compute its coordinate. 8-10nC 82=20nc → x=L= 15 cm X=O b) Compute the electric potential at the point E = 0 as a sum of potentials created in that point by charges 91 and 92. c) In the figure below, mark the point between the charges where the electric potential is zero (V = 0). If you just use q21/1911 = 2 and the fact that electric potential is proportional to q/r, the calculation should be very simple. ₁-10nC 2=20nC XEO x=L= 15 cm d) What is the direction of the electric field E at the point V = 0 (draw the vector in the figure). Compute its magnitude and express E in the vector form.
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