A disk of radius R with uniform positive charge density o is placed on the xy...

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A disk of radius R with uniform positive charge density o is placed on the xy plane with its centre at the origin. The Coulomb potential along the z-axis is (A) For A particle of positive charge q is placed initially at rest at a point on the z axis with z = zo and zo > 0. In addition to the Coulomb force, the particle experiences a vertical force F = -ck with c> 0. Let 2c Eo B Which of the following statements(s) is (are) correct? qo В (B) For B and Zo = R 25 7 - and Zo = (C) For B=- - and zo = 4 -( √R² + z² − 2). - σ V(z) = ₂0 2 R the particle reaches the origin. 3 R, the particle reaches the origin. 7 the particle returns back to z-zo. √√3 (D) For ß> 1 and zo > 0, the particle always reaches the origin. A disk of radius R with uniform positive charge density o is placed on the xy plane with its centre at the origin. The Coulomb potential along the z-axis is (A) For A particle of positive charge q is placed initially at rest at a point on the z axis with z = zo and zo > 0. In addition to the Coulomb force, the particle experiences a vertical force F = -ck with c> 0. Let 2c Eo B Which of the following statements(s) is (are) correct? qo В (B) For B and Zo = R 25 7 - and Zo = (C) For B=- - and zo = 4 -( √R² + z² − 2). - σ V(z) = ₂0 2 R the particle reaches the origin. 3 R, the particle reaches the origin. 7 the particle returns back to z-zo. √√3 (D) For ß> 1 and zo > 0, the particle always reaches the origin.

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