JEE Mains · Physics · STD 12 - 1. Electric charges and fields
Two point charges \(q_1=3\,\mu C\) and \(q_2=-4\,\mu C\) are placed at points \((2\hat{i}+3\hat{j}+3\hat{k})\) and \((\hat{i}+\hat{j}+\hat{k})\) respectively. Force on charge \(q_2\) is ________ N. \(\left(\text{Take } \dfrac{1}{4\pi\epsilon_0} = 9\times 10^9 \text{ SI Units}\right)\)
- A \((12\hat{i}+24\hat{j}+24\hat{k})\times 10^{-3}\)
- B \((4\hat{i}+8\hat{j}+8\hat{k})\times 10^{-3}\)
- C \((3\hat{i}+6\hat{j}+6\hat{k})\times 10^{-3}\)
- D \((-4\hat{i}-8\hat{j}-8\hat{k})\times 10^{-3}\)
Answer & Solution
Correct Answer
(B) \((4\hat{i}+8\hat{j}+8\hat{k})\times 10^{-3}\)
Step-by-step Solution
Detailed explanation
Position vector of \(q_1\), \(\vec{r}_1 = 2\hat{i} + 3\hat{j} + 3\hat{k}\) Position vector of \(q_2\), \(\vec{r}_2 = \hat{i} + \hat{j} + \hat{k}\) Vector from \(q_1\) to \(q_2\) is…
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