The ions m a mass spectrometer are given kinetic energy by crossing a potential

Question

The ions m a mass spectrometer are given kinetic energy by crossing a potential difference (V). They then pass through a magnetic field (B) perpendicular to their direction of travel. This results in a centripetal acceleration causing them to curve with a radius r. Select the graph that correctly shows the relationship between the radius of the ion's path and the magnetic field strength. You would get a straight line if you placed "r" on the y-axis and B on the x-axis 1/B^2 on the x-axis 1/B- on the x-axis B^2 on the x-axis The slope of the graph of the straight line from the previous question is qv/m vq/m mv/q qm/v

Explanation / Answer

13)

mv^2/r = qvB

B is inversely proportional to r

so option

answer b

14)

answer b

15)

answer b)

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