Conservative force work over closed path: MCQ with Answer and Explanation

Conservative force work over closed path:
A. Positive
B. Zero
C. Path dependent
D. Negative
Answer: Option B
Solution (By JKSSB Mock Tests)
Conservative forces (gravity, spring): work path-independent ⇒ ∮F·dr = 0 over closed loop. Enables potential energy definition. Memory aid: 'Conservative: ∮F·dr = 0; enables energy conservation'. Mechanics foundation frequently tested in competitive exams.

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