A) \[CE\frac{{{r}_{2}}}{(r+{{r}_{2}})}\]
B) \[CE\frac{{{r}_{1}}}{({{r}_{1}}+r)}\]
C) CE
D) \[CE\frac{{{r}_{1}}}{({{r}_{2}}+r)}\]
Correct Answer: A
Solution :
It steady state, current through AB = 0 \[\Rightarrow \]\[{{V}_{AB}}={{V}_{CD}}\] \[\Rightarrow \]\[{{V}_{AB}}=\left( \frac{\varepsilon }{r+{{r}_{2}}}\times {{r}_{2}} \right)-{{V}_{CD}}\] \[\Rightarrow \]\[{{Q}_{c}}=C{{V}_{AB}}\] \[=CE\left( \frac{{{r}_{2}}}{r+{{r}_{2}}} \right)\]You need to login to perform this action.
You will be redirected in
3 sec