Answer :

Moving electron is just like current flowing in a straight wire and velocity of electron is opposite to the current flow. And according to Biot-savart law:


, where


μo is magnetic permeability in vacuum,


q is charge of the particle,


v is constant velocity vector of particle,


and r is the displacement vector for point we want to calculate the magnetic field;


for a charge moving with constant velocity v. So, B will be perpendicular to v and r as B is cross product of v and r.


Hence, our answer is option (a).

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

<span lang="EN-USPhysics - Board Papers

A horizontal circHC Verma - Concepts of Physics Part 2

A current carryinPhysics - Exemplar

A current carryinPhysics - Exemplar

Two infinitely loPhysics - Board Papers

<span lang="EN-USHC Verma - Concepts of Physics Part 2

<span lang="EN-USHC Verma - Concepts of Physics Part 2