A) \[\frac{{{K}_{1}}}{2}+{{K}_{2}}\]
B) \[{{\left[ \frac{1}{2{{K}_{1}}}+\frac{1}{{{K}_{2}}} \right]}^{-1}}\]
C) \[\frac{1}{2{{K}_{1}}}+\frac{1}{{{K}_{2}}}\]
D) \[{{\left[ \frac{2}{{{K}_{1}}}+\frac{1}{{{K}_{1}}} \right]}^{-1}}\]
Correct Answer: B
Solution :
In series combination \[\frac{1}{{{k}_{S}}}=\frac{1}{2{{k}_{1}}}+\frac{1}{{{k}_{2}}}\] Þ \[{{k}_{S}}={{\left[ \frac{1}{2{{k}_{1}}}+\frac{1}{{{k}_{2}}} \right]}^{-1}}\]You need to login to perform this action.
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