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Q. |
The closed-coiled helical springs are made from the same small diameter wire, one wound on 2.5 cm diameter core and the other on 1.25 cm diameter core. If each spring has n coils, the ratio of their spring constants would be |
A. | 1?2 |
B. | 1 |
C. | 1?8 |
D. | 1?4 |
E. | 1?16 |
Answer» C. 1?8 |
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