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

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

Correct Answer:

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