ris A velocity selector is used in accelerator mass spectrometry to select parti
ID: 1730960 • Letter: R
Question
ris A velocity selector is used in accelerator mass spectrometry to select particles based on their speed. The velocity selector is composed of electric and magnetic fields, such that particles with the correct charge to n fected, and other particles will be deflected. Choose the correct statement regarding this velocity selector: cutaway × × view ?× × ass ratio and speed will be unaf- xxplaes x x ×Capacitor 18.AO slower moving positively charged particles will be deflected downwards. moving positively charged particles will be deflected downwards. CO the E-Field and the B-Field must be in opposite directions. DO particles with lesser charge will be deflected downwards. EO particles with greater charge will be deflected downwards.Explanation / Answer
Since capacitor apply field +ve side to -ve side , that means downward... Hence electric force F = qE acts downward hence this positive charge will reflect downward.
You can also see that positive charge will be attracted by -ve plate.. since lower plate is -vely charged hence it's trajectory will be downward.
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