A) \[{{\varepsilon }_{1}}-({{L}_{1}}+{{L}_{2}})R+{{L}_{1}}{{r}_{1}}=0\]
B) \[-{{\varepsilon }_{2}}-({{L}_{1}}+{{L}_{2}})R+{{i}_{2}}{{r}_{2}}=0\]
C) \[{{\varepsilon }_{2}}-{{i}_{2}}{{r}_{2}}-{{\varepsilon }_{1}}-{{i}_{1}}{{r}_{1}}=0\]
D) \[{{\varepsilon }_{1}}-({{i}_{1}}+{{i}_{2}})R-{{i}_{1}}{{r}_{1}}=0\]
Correct Answer: D
Solution :
The circuit can re drawn as For loop - I (upper loop) Applying KVL,\[{{E}_{1}}-({{i}_{1}}+{{i}_{2}})R-{{i}_{1}}{{r}_{1}}=0\]You need to login to perform this action.
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