Question

how far apart must the point changes of 75nC be to have force of 1.00 N between them

Answer 1

Answer on Question #71805 – Physics – Electromagnetism

How far apart must the point changes of 75nC be to have force of 1.00 N between them

Solution:

$$F = \frac {1}{4 \pi \varepsilon_ {0}} \frac {q _ {1} q _ {2}}{r ^ {2}} \rightarrow r = \frac {q}{\sqrt {4 \pi \varepsilon_ {0} F}} = \frac {7 5 \times 1 0 ^ {- 9}}{\sqrt {4 \pi \cdot 8 . 8 5 \times 1 0 ^ {- 1 2} \cdot 1 . 0 0}} = 7. 1 1 \times 1 0 ^ {- 3} m$$

Answer: $7.11 \times 10^{-3} m$.

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