Multiple Choice
At the Fermilab accelerator in Weston, Illinois, singly-charged ions with momentum 3.2 *10 - 16 kg.m/s are held in a circular orbit of radius 1 km by an upward magnetic field. What B-field must be used to maintain the ions in this orbit? (qion = 1.6 *10 - 19 C)
A) 4 T
B) 2 T
C) 1 T
D) 3 T
Correct Answer:

Verified
Correct Answer:
Verified
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