Question

Two 7.00 µC charged particles are located on the x axis. One is at x = 1.00 m, and the other is at x = -1.00 m.

(a) Determine the electric field on the y axis at y = 0.800 m.
N/C i +  N/C j

(b) Calculate the electric force on a -3.00 µC charge placed on the y axis at y = 0.800 m.
N i +  N j

Answer 1

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Ez 8 Y P 应E * Ei P Р DE, Q 0.8m Q2 2 so X Х Q , = Q = 7MC = 7x10c Xz lm X=-im or tan" ( ) - 34.66 ' = 1.28 m. Ę - E, = Electric bield at y-axil due to Q, =kQi ri=Sintos? 8,2 야 (gx10 Nm722) (3x10 cl - 38452.15 " 5,- 11.98m)? Ez = Electric bield at y-axis due to Q2 same as Q, hQ2 &q= 1.28m. E- Y₂² 38452.15 NIC E = Ex i + Ey J = 0. NC Ex = E, coso - Ez coso Here, E = Ez Ey = af, sino + Esino = 2 Esing Ey =-2x38452-15 *Sin (38.65 = - 48041 9 4 N/ E - Ey i + Ey J + 0 1 =(49041.94 M) J F: QE 3xjöToi+1809-1.945] J Froi +0.144 N) J = 0 – 0-144 NI CS Scanned with CamScanner