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- PHY102 Physics II © Dr.Cem Özdoğan
- E of a Charged Circular Rod
- Fig. 22-11 (a) A plastic rod of charge Q is a circular section of radius r and central angle 120°; point P is the center of curvature of the rod. (b) The field components from symmetric elements from the rod.
- Our element has a symmetrically located (mirror image) element ds' in the bottom half of the rod.
- If we resolve the electric field vectors of ds
- and ds' into x and y components as shown in we see that their y components cancel (because they have equal magnitudes and are in opposite directions).We also see that their x components have equal magnitudes and are in the same direction.
- 22-6 The Electric Field due to a Continuous Charge