The stiffness of the close coil helical spring is – McqOptions

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1.	The stiffness of the close coil helical spring is
A.	d 4N/8D 3n
B.	d 4N/4D 3n
C.	4D 3N/d 4n
D.	8D 3N/d 4n
Answer» B. d 4N/4D 3n

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