A) \[\frac{{{V}_{1}}-{{V}_{2}}}{{{V}_{1}}+{{V}_{2}}}\]
B) \[\frac{{{V}_{1}}}{{{V}_{1}}-{{V}_{2}}}\]
C) \[\frac{{{V}_{1}}-{{V}_{2}}}{{{V}_{2}}}\]
D) \[\frac{{{V}_{1}}-{{V}_{2}}}{{{V}_{1}}}\]
Correct Answer: C
Solution :
Common potential \[=\frac{total\text{ }charge}{total\text{ }capacity}\] \[{{V}_{2}}=\frac{{{C}_{0}}{{V}_{1}}+0}{{{C}_{0}}+K{{C}_{0}}}=\frac{{{V}_{1}}}{1+K}\] \[1+K=\frac{{{V}_{1}}}{{{V}_{2}}}\] \[K=\frac{{{V}_{1}}-{{V}_{2}}}{{{V}_{2}}}\]You need to login to perform this action.
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