MP Board · Class 12 · Physics · Electric Charges and FieldsThe electric field intensity $E$ at a distance $r$ from an infinitely long straight line charge of uniform linear density $\lambda$ is proportional to:
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Step-by-Step Solution
The electric field due to an infinite line charge is $E = \frac{\lambda}{2\pi\epsilon_0 r}$. Therefore, $E \propto \frac{1}{r}$.
Detailed Options Breakdown
Option : $1/r$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: $1/r^2$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Charges and Fields.
Option 2: $r$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Charges and Fields.
Option 3: $1/r^3$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Charges and Fields.
💡 Study Guide: This question tests core syllabus concepts from Electric Charges and Fields. For formulas, key summaries, and mock exam reference guides, read the full Electric Charges and Fields Revision Notes.