Two Tiny Particles Having Charges $+ 20.0 \mu \mathrm { C }$

question 42

Multiple Choice

Two tiny particles having charges $+ 20.0 \mu \mathrm { C }$ and $- 8.00 \mu \mathrm { C }$ are separated by a distance of $20.0 \mathrm {~cm}$ . What are the magnitude and direction of electric field midway between these two charges? $( k = 1 / 4$ $\pi \varepsilon _ { 0 } = 9.0 \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 }$ )

• A) \(25.2 \times 10^6 \mathrm {~N} / \mathrm { C }\) directed towards the negative charge
• B) \(25.2 \times 10 ^ { 6 } \mathrm {~N} / \mathrm { C }\) directed towards the positive charge
• C) \(25.2 \times 10 ^ { 5 } \mathrm {~N} / \mathrm { C }\) directed towards the negative charge
• D) \(25.2 \times 10 ^ { 4 } \mathrm {~N} / \mathrm { C }\) directed towards the negative charge
• E) \(25.2 \times 10 ^ { 5 } \mathrm {~N} / \mathrm { C }\) directed towards the positive charge

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