Suppose the initial speed of the proton in Figure 22-56 is increased. (a) Does the radius of
Question:
Suppose the initial speed of the proton in Figure 22-56 is increased.
(a) Does the radius of each half-circular path segment increase, decrease, or stay the same?
(b) Choose the best explanation from among the following:
I. The radius of a circular orbit in a magnetic field is proportional to the speed of the proton; therefore, the radius of the half-circular path will increase.
II. A greater speed means the proton will experience more force from the magnetic field, resulting in a decrease of the radius.
III. The increase in speed offsets the increase in magnetic force, resulting in no change of the radius.
Figure 22-56
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