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JEE Mains · Physics · STD 12 - 1. Electric charges and fields

एक विधुत द्विध्रुव जिसका आघूर्ण (moment) \(\overrightarrow{ p }=(-\hat{ i }-3 \hat{ j }+2 \hat{ k }) \times 10^{-29} C \cdot m\) है, मूलबिन्दु \((0,0,0)\) पर रखा हुआ है। इसके द्वारा \(\overrightarrow{ r }=+\hat{ i }+3 \hat{ j }+5 \hat{ k }\) बनने वाले विधुत क्षेत्र की दिशा निम्न में से किसके समान्तर होगी। (ध्यान दें कि \(\overrightarrow{ r } \cdot \overrightarrow{ p }=0\) )

  1. A \((-\hat{i}+3 \hat{j}-2 \hat{k})\)
  2. B \((+\hat{i}-3 \hat{j}-2 \hat{k})\)
  3. C \((+\hat{i}+3 \hat{j}-2 \hat{k})\)
  4. D \((-\hat{i}-3 \hat{j}+2 \hat{k})\)
Verified Solution

Answer & Solution

Correct Answer

(C) \((+\hat{i}+3 \hat{j}-2 \hat{k})\)

Step-by-step Solution

Detailed explanation

since \(\overrightarrow{\mathrm{r}}\) and \(\overrightarrow{\mathrm{p}}\) are perpendicular to each other therefore point lies on the equitorial plane. Therefore electric field at the point will be antiparallel to the dipole moment. i.e.…
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