MCQ
Force between two unit pole strength placed at a distance of one metre is
- A$1 \mathrm{~N}$
- B$\frac{10^{-7}}{4 \pi} \mathrm{N}$
- ✓$10^{-7} \mathrm{~N}$
- D$4 \pi \times 10^{-7} \mathrm{~N}$
✓
Answer
Correct option: C.
$10^{-7} \mathrm{~N}$
(c) $F=10^{-7} \times \frac{m^2}{r^2}=\frac{10^{-7}(1)^2}{(1)^2}=10^{-7} \mathrm{~N}$
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