AP EAMCET · PHYSICS · Electrostatics
An electric charge \(10^{-3} \mu \mathrm{C}\) is placed at the origin of \(\mathrm{x}-\mathrm{y}\) plane. The potential difference between points \(A\) and \(B\) located at \((\sqrt{2} m, \sqrt{2} m)\) and \((2 m, 0 m)\) respectively is
- A 4.5 V
- B 9 V
- C 0 V
- D 2 V
Answer & Solution
Correct Answer
(C) 0 V
Step-by-step Solution
Detailed explanation
\(q = 10^{-3} \times 10^{-6} \mathrm{C} = 10^{-9} \mathrm{C}\) \(r_A = \sqrt{(\sqrt{2})^2 + (\sqrt{2})^2} = \sqrt{2 + 2} = \sqrt{4} = 2 \mathrm{~m}\) \(r_B = \sqrt{(2)^2 + (0)^2} = \sqrt{4} = 2 \mathrm{~m}\)…
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