Intially, switch $S$ is connected to position $1$ for a long time shown in figure. The net amount of heat generated in the circuit after it is shifted to position $2$ is 
  • A$\frac{C}{2}\left( {{\varepsilon _1} + {\varepsilon _2}} \right){\varepsilon _2}$
  • B$C\left( {{\varepsilon _1} + {\varepsilon _2}} \right){\varepsilon _2}$
  • C$\frac{C}{2}{\left( {{\varepsilon _1} + {\varepsilon _2}} \right)^2}$
  • D$C{\left( {{\varepsilon _1} + {\varepsilon _2}} \right)^2}$
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