A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2)

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Question
A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm²), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is
Options
A. 25 N
B. 30 N
C. 35 N
D. 40 N

Correct Answer

35 N

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Options
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