In a Velocity Selector for Ions, When the Electric Field

question 21

Multiple Choice

In a velocity selector for ions, when the electric field is increased by 50%, what change in the magnetic field is necessary to select the same speed as before?

• A) a 50% decrease
• B) a 25% decrease
• C) no change
• D) a 25% increase
• E) a 50% increase

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