Mass-spectrometer (device that selects atomic particles ofdifferent masses and c

Question

Mass-spectrometer (device that selects atomic particles ofdifferent masses and charges) consists of cylindrical capacitorwith inner radius R1=2.4 cm and outer radius R2=3 cm. Ions enterthe mass-spectrometer through narrow slit S which is situated inbetween the capacitor plates as shown on the picture. Uniformmagnetic field B=0.2 T is applied parallel to the capacitor’saxis. Find potential difference ? that should be appliedbetween capacitance’s plates in order for the lithium ionLi+7 (charge +e, mass 7m, m=1.67*10-27 kg) to go around the middlesection of the capacitor, i.e. on the circle of R=2.7 cm. Energy ofincoming ions is 1000 eV. By how much the potential should bechanged in order for lithium ions Li+6 to go around the sametrajectory
(old work deleted still not sure what to do or where tostart)
(old work deleted still not sure what to do or where tostart)

Explanation / Answer

i did what i know but im not sure thats wright i left a lottavarables unused

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