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A Doubly Charged Ion with Speed 6 $\vec { B }$

Question 66

Multiple Choice

A doubly charged ion with speed 6.9 × 10⁶ m/s enters a uniform 0.80-T magnetic field,traveling perpendicular to the $\vec { B }$ field.Once in the field,it moves in a circular arc of radius 30 cm.What is the mass of this ion? (e = 1.60 × 10^-19 C)

A) 11 × 10^-27 kg
B) 6.7 × 10^-27 kg
C) 3.3 × 10^-27 kg
D) 8.2 × 10^-27 kg

A Doubly Charged Ion with Speed 6 B⃗\vec { B }B

Multiple Choice

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A Doubly Charged Ion with Speed 6 $\vec { B }$

Correct Answer:
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