AP EAMCET · PHYSICS · Electrostatics
An infinite line charge produces a field of \(9 \times 10^4 \mathrm{NC}^{-1}\) at a distance of \(2 \mathrm{~cm}\). The linear charge density is
- A \(10^{-7} \mathrm{C} \mathrm{m}^{-1}\)
- B \(1.5 \times 10^{-7} \mathrm{C} \mathrm{m}^{-1}\)
- C \(10^{-8} \mathrm{C} \mathrm{m}^{-1}\)
- D \(1.5 \times 10^{-8} \mathrm{C} \mathrm{m}^{-1}\)
Answer & Solution
Correct Answer
(A) \(10^{-7} \mathrm{C} \mathrm{m}^{-1}\)
Step-by-step Solution
Detailed explanation
Electric field, \(\mathrm{E}=9 \times 10^4 \mathrm{~N} / \mathrm{C}\) Distance, \(\mathrm{r}=2 \mathrm{~cm}=0.02 \mathrm{~m}\) For infinite line change…
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