Three point charges are located on a circular arc as shown in the figure below. (Take r = 3.88 cm. Let to the right be the +x direction and up along the screen be the +y direction.) +3.00 nC -2.00 nC r 30.0 30.0° +3.00 nC (a) What is the total electric field at P, the center of the arc? E = Î N/C + ĴN/C (b) Find the electric force that would be exerted on a -4.65-nC point charge placed at P. F = ÎN + ĴN

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Three point charges are located on a circular arc as shown in the figure below. (Take r = 3.88 cm. Let to the right be the +x direction and up along the screen be the +y direction.)
+3.00 nC
-2.00 nC
30.0°
30.0°
+3.00 nC
(a) What is the total electric field at P, the center of the arc?
E =
ÎN/C+
ĴN/C
(b) Find the electric force that would be exerted on a -4.65-nC point charge placed at P.
F =
ÎN +
ĴN
Transcribed Image Text:Three point charges are located on a circular arc as shown in the figure below. (Take r = 3.88 cm. Let to the right be the +x direction and up along the screen be the +y direction.) +3.00 nC -2.00 nC 30.0° 30.0° +3.00 nC (a) What is the total electric field at P, the center of the arc? E = ÎN/C+ ĴN/C (b) Find the electric force that would be exerted on a -4.65-nC point charge placed at P. F = ÎN + ĴN
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