Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 22 (Q.No. 45)
45.
Two closed-coil springs of stiffness s and 2s are arranged in series in one case and in parallel in the other case. The ratio of stiffness of springs connected in series to parallel is
Discussion:
1 comments Page 1 of 1.
Uttam said:
7 years ago
Series = k1*k2/k1+k2= (s*2s)/(s+2s)=2s/3,
parallel=k1+k2=s+2s=3s,
Ratio = series/parallel=(2s/3)/3s= 2/9.
parallel=k1+k2=s+2s=3s,
Ratio = series/parallel=(2s/3)/3s= 2/9.
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