21 55 A Ring Shaped Conductor With Radius A 2 50 Cm Has A Total Positive Charge Q 0 125 Nc Uniformly Distributed A 1 (262.83 KiB) Viewed 100 times
21 55 A Ring Shaped Conductor With Radius A 2 50 Cm Has A Total Positive Charge Q 0 125 Nc Uniformly Distributed A 2 (323.71 KiB) Viewed 100 times
21.55. A ring shaped conductor with radius a - - 2.50 cm has a total positive charge Q +0.125 nC uniformly distributed around it, as shown in Fig. 21.24. The center of the ring is at the origin of coordinates O. (a) What is the electric field (magnitude and direc- tion) at point P, which is on the x-axis at x = 40.0 cm? (b) A point charge q = -2.50 µC is placed at the point P described in part (a). What are the magnitude and direction of the force exerted by the charge q on the ring?
2 V dQ ds _1=1/²² +2² t dE, P dEx La dE
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