Three point charges lie on a circular arc, as shown. Let r = 2.60 cm, q1 = +2.50nC, q2 = -4.50 nC, q; = +3.50 nC, and 0 = 25°. Recall 1 nC = 10° C, and 1 cm =102 m.P93a. Calculate the magnitude of the electric field at the point P.b. Calculate the direction of the electric field at point P relative to thepositive x-axis.c. Calculate the magnitude of the electric force on a charge q4 = -3.00 nC if itis placed at point P.d. Calculate the direction of the electric force on q4 when placed at point P.

Answered: Three point charges lie on a circular…

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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Question

Three point charges lie on a circular arc, as shown. Let r = 2.60 cm, q1 = +2.50
nC, q2 = -4.50 nC, q; = +3.50 nC, and 0 = 25°. Recall 1 nC = 10° C, and 1 cm =
102 m.
P
93
a. Calculate the magnitude of the electric field at the point P.
b. Calculate the direction of the electric field at point P relative to the
positive x-axis.
c. Calculate the magnitude of the electric force on a charge q4 = -3.00 nC if it
is placed at point P.
d. Calculate the direction of the electric force on q4 when placed at point P.

Expert Solution

Step 1

The electric field is known to be at each point in space as the force (per a unit electric charge) that would be experienced by a small positive test charge if held at that point.

Electric Field E $= \frac{K_{e} Q}{r^{2}}$

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