In the spectrometer shown in the Figure do the ions have positive or negative ch
ID: 1442850 • Letter: I
Question
In the spectrometer shown in the Figure do the ions have positive or negative charge? http://i.imgur.com/oGdA0DZ.png A. Positive B. Negative Part 2 The moving ions can be thought of as a current loop, and it will produce its own magnetic field. The direction of this field at the center of the particles' circular orbit is A. In the same direction as the spectrometer's magnetic field. B. Opposite the direction of the spectrometer's magnetic field. Part 3 Why is it important that the ions have a known speed? A. The radius of the orbit depends on the mass, the charge, and the speed. If the charge and the speed are the same, the orbit depends on only the mass. B. The orbit must be circular, and this is the case for only a certain range of speeds. C. If the ions are moving too fast, the magnetic field will not be able to bend their path to the detector. D. The ions are all accelerated by the same electric field, and so will all have the same speed anyway.Explanation / Answer
1) A)positive (according right hand rule)
2) B. Opposite the direction of the spectrometer's magnetic field.
3) A. The radius of the orbit depends on the mass, the charge, and the speed. If the charge and the speed are the same, the orbit depends on only the mass.
radius of orbit, r = m*v/(B*q)
m --> mass
v---> speed
B---> magnetic field
q---> charge of accelerated particle.