Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

A charged particle moves in a circle around an infinite line charge such that center of circle lies on line and line is perpendicular to plane of circle. If r is the radius of circle the velocity of particle will depend on which power of r .

$(A)\;0 \\ (B)\;1 \\ (C)\; -1 \\ (D)\;2 $

Can you answer this question?

1 Answer

0 votes
$\large \frac{\lambda}{2 \pi \in_0 r}=\frac{mv^2}{r}$
=> $ v= \sqrt { \large\frac{\lambda}{2 \pi \in_0 m}}$
ie v is independent of r.
Hence A is the correct answer.
answered Jan 10, 2014 by meena.p

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App