21.40: Point charge q1 = -5.00 nC is at the origin and point charge q2 = +3.00 nC is on the x-axis at x = 3.00 cm. Point P is on the y- axis at y = 4.00 cm. (a) Calculate the electric fields Ej and E2 at point P due to the charges %3D 91 and q2 . Express your results in terms of unit vectors. (b) Use the results of part (a) to obtain the resultant field at P, expressed in unit vector form.
21.40: Point charge q1 = -5.00 nC is at the origin and point charge q2 = +3.00 nC is on the x-axis at x = 3.00 cm. Point P is on the y- axis at y = 4.00 cm. (a) Calculate the electric fields Ej and E2 at point P due to the charges %3D 91 and q2 . Express your results in terms of unit vectors. (b) Use the results of part (a) to obtain the resultant field at P, expressed in unit vector form.
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Transcribed Image Text:21.40: Point charge q1 = -5.00 nC is at the
origin and point charge q2 = +3.00 nC is on
the x-axis at x = 3.00 cm. Point P is on the y-
axis at y = 4.00 cm. (a) Calculate the electric
fields Ej and E2 at point P due to the charges
91 and q2 . Express your results in terms of
unit vectors. (b) Use the results of part (a) to
obtain the resultant field at P, expressed in
unit vector form.
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