Apositively charged ring is in y-z plane with its centre at origin. Apositive test charge q0, held at origin is released along x-axis, then its speed

Question

Apositively charged ring is in y-z plane with its centre at origin. Apositive test charge q0, held at origin is released along x-axis, then its speed (A) Increases continuously (B) Decreases continuously (C) First increases then decreases (D) First decreases then increases

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/30b2b1216c613264beeecb709332ad34-.png" /> V=(k q/√x2+a2) V decreases So, U decreases So, K increases

Q. Apositively charged ring is in $y - z$ plane with its centre at origin. Apositive test charge $q_{0}$ , held at origin is released along $x$ -axis, then its speed

Increases continuously

Decreases continuously

First increases then decreases

First decreases then increases

$V = \frac{k q}{x ^{2} + a ^{2}}$
$V$ decreases
So, $U$ decreases
So, $K$ increases

Q. Apositively charged ring is in y−z plane with its centre at origin. Apositive test charge q0​, held at origin is released along x-axis, then its speed