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Class 12 › Physics › Electric Potential & Capacitance
CBSE2019Class Class 12 · Physics2 Marks · Short✅ Verified
One charge particle is moved from A→C→B and another from A→D→B in a uniform external electric field. For which charge particle more work is needed?
✅ Answer & Solution
📌 Answer: <b>Work done is the same for both paths.</b>
Key Concept: <b>Electrostatic force is conservative in nature.</b>
Explanation:
• In a conservative field, work done depends only on the <b>initial and final points</b>.
• It does NOT depend on the <b>path taken</b>.
• Both particles start at <b>A</b> and end at <b>B</b>.
W = q × (V_A − V_B)
Since V_A and V_B are fixed (same for both particles):
W₁ (A→C→B) = W₂ (A→D→B)