CBSE Class 12-science Answered
A BEAM OF ALPHA PARTCLES PROJECTED ALONG POSITIVE X-AXIS EXPERIRNCES A FORCE DUE TO A MAGNETIC FIRLD ALONG POSITIVE Y-AXIS .WHAT IS THE DIRECTION OF THE MAGNETIC FIELD? PLEASE EXPLAIN CLEARLY.
Asked by modi72879 | 04 Sep, 2017, 08:07: AM
Expert Answer
1) The alpha particle is projected along +x-axis. So, 
2) The force experienced by the alpha particle is along +y-axis. So, 
3) Now, the force experienced by a charged particle in a magnetic field is the Lorentz force given as 
4) Therefore, we have
Hence, the direction of magnetic field is along the negative z-axis.
Answered by Romal Bhansali | 06 Sep, 2017, 12:31: PM
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