Q30 What are the strength and direction of the electric field at the position in
ID: 1528309 • Letter: Q
Question
Q30
What are the strength and direction of the electric field at the position indicated by the dot in the figure(Figure 1) ?
Figure 1 of 1 10 nC -10 nC 5.0 cm 3.0 cm 5.0 nC Give your answer in component form. Assume that 2-axis is horisontal and points to the right, and yaxis points upwa Express your answers using two significant figures separated by a comma. N/C Er, E Submit My Answers Give Up rt B What is the magnitude of the electric field at the position indicated by the dot in the figure Express your answer using two significant figures. N/C Submit My Answers Give Up Part C What is the angle measured cw from the positive r-axis of the electric field atthe position indicated by the dot in the figure Express your answer using two significant figures o CW from the +z-axis, Submit My Answers Give UpExplanation / Answer
distance between dot and -10 nC = sqroot ( 34 )cm = 0.058 m aprx
angle between point P and -10 nC = tan^-1( 3/5) = 30.96 degree
Ex= K ( -5 x 10^-9) / (0.0025) + K (- 10 x 10^-9) / (0.058 )^2 cos 30.96 = -4.09 x 10^ 4 N/c
Ey = K(10 x 10^-9) / ( 0.009 ) + K ( -10 x 10^-9 ) (0.058 )^2si n 30.96 = =- 5.96 x 10^ 3 N/C
b) Magnitude of electric field= 44.31 x 10^3 N/c apprx
c) angle = tan^-1 ( 5.96/ 40.09) = 8.455 degree apprx
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