In the circuit shown below $E_1 = 4.0 \,V, R_1= 2 \Omega, E_2 = 6.0 \,V, R_2 = 4 \,\Omega$ and $R_3 = 2 \,\Omega$. The current $I_1$ is ..................... $A$
  • A$1.6$
  • B$1.8$
  • C$1.25$
  • D$1$
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