Two Single Charged Ions Moving Perpendicularly to a Uniform Magnetic

question 120

Multiple Choice

Two single charged ions moving perpendicularly to a uniform magnetic field (B = 0.40 T) with speeds of 5 000 km/s follow circular paths that differ in diameter by 5.0 cm.What is the difference in the mass of these two ions?

• A)2.6 *10 ^{- 28} kg
• B)6.4 *10 ^{- 28} kg
• C)3.2*10 ^{- 28} kg
• D)5.1*10 ^{- 28} kg
• E)1.1 *10 ^{- 28} kg

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