Adobe Reader Touch 1) Point charges q, (a) Find the electric field at P. (b) Find the magnitude of the electric field at P. (c) Find the direction of the electric field at P. (k = 9×10° N×m²/C², and n = 40 nC, q, = -30 nC, q3 = 20 nC, and q4 = -10 nC are arranged in Figure. 10-9) y = -30 nC q = 40 nC 92 2 m 2 m 2 m 94 = -10 nC 2 m 20 nC
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