A $6.9 \mu \mathrm { C }$ Negative Point Charge Has a Positively Charged Particle in an Has

question 90

Multiple Choice

A $6.9 \mu \mathrm { C }$ negative point charge has a positively charged particle in an elliptical orbit about it. If the mass of the positively charged particle is $1.0 \mu \mathrm { g }$ and its distance from the point charge varies from $4.0 \mathrm {~mm}$ to $16.0 \mathrm {~mm}$ , what is the maximum potential difference through which the positive object moves? $\left( k = 1 / 4 \pi \varepsilon _ { 0 } = 9.0 \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 } \right)$

• A) \(- 5.2 \mathrm { MV }\)
• B) \(19 \mathrm { MV }\)
• C) \(3.9 \mathrm { MV }\)
• D) \(12 \mathrm { MV }\)

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