AIEEE Exam

If the particles begin and end at rest, and all are
positively charged, the same amount of work was
done on which particles ?
(A) W and Y (B) W, Y and Z
(C) Y and Z (D) W, X, Y and Z

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AIEEE Other Question

A uniform rod of mass m and length l rotates in a
horizontal plane with an angular velocity ω about
a vertical axis passing through one end. The
tension in the rod at a distance x from the axis is
If all particles started from rest, and all are
positively charged, which particles must have been
acted upon by a force other than that produced by
the electric field ?
(A) W and Y (B) X and Z
(C) X, Y and Z (D) W, X, Y and Z