The figure shows a plastic ring of radius R = 50.4 cm. Two small charged beads are on the ring: Bead 1 of charge +2.23 μC is fixed in place at the left side; bead 2 of charge +6.10 µC can be moved along the ring. The two beads produce a net electric field of magnitude E at the center of the ring. At what (a) positive and (b) negative value of angle 8 should bead 2 be positioned such that E = 2.32 × 105 N/C? (a) Number i (b) Number i Bead 1 Units Ring- Units R 10 Bead 2

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.