35. Charged Bead Moving Along Axis of Charged Ring

35. Charged Bead Moving Along Axis of Charged Ring - a E x...

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Charged Bead Moving Along Axis of Charged Ring Consider a negatively charged bead (mass m , charge - q ) constrained to move without friction along the axis of a positively charged ring. Place bead on x -axis near center of ring: | x
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Unformatted text preview: a : E x ’ kQx a 3 • Restoring force: F =-qE x =-k s x with k s = kQq a 3 • Harmonic oscillation: x ( t ) = A cos( ωt + φ ) • Angular frequency: ω = r k s m = r kQq ma 3 E x x-x x tsl35 – p.1/1...
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