At the Fermilab Accelerator in Weston,Illinois,singly-Charged Ions with Momentum 3

question 6

Multiple Choice

At the Fermilab accelerator in Weston,Illinois,singly-charged ions with momentum 3.3 × 10−¹⁶ kg⋅m/s are held in a circular orbit of radius 1.00 km by an upward magnetic field.What B field must be used to maintain the ions in this orbit? (qion = 1.60 × 10−¹⁹ C)

• A)5.3 T
• B)2.1 T.
• C)2.1 T
• D)0.19 T
• E)0.48 T

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