MP Board · Class 12 · Physics · Electric Charges and FieldsThe work done in rotating an electric dipole of dipole moment $p$ through an angle $180^\circ$ from its stable equilibrium position in a uniform electric field $E$ is:
📊Student Analytics & Stats
Total Attempts: 8
Accuracy Rate: 25%
Step-by-Step Solution
Work done in rotating a dipole from angle $\theta_1$ to $\theta_2$ is $W = pE(\cos\theta_1 - \cos\theta_2)$.\nHere, $\theta_1 = 0^\circ$ and $\theta_2 = 180^\circ$. $$W = pE(\cos 0^\circ - \cos 180^\circ) = pE(1 - (-1)) = 2pE$$
Detailed Options Breakdown
Option : $2pE$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: $pE$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Charges and Fields.
Option 2: Zero
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Charges and Fields.
Option 3: $-pE$
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.