For the circuit shown with \( \mathrm{R}_{1}=1.0 \Omega, \mathrm{R}_{2}=2.0 \Omega, \mathrm{E}_{...

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For the circuit shown with \( \mathrm{R}_{1}=1.0 \Omega, \mathrm{R}_{2}=2.0 \Omega, \mathrm{E}_{1} \) \( =2 \mathrm{~V} \) and \( \mathrm{E}_{2}=\mathrm{E}_{3}=4 \mathrm{~V} \), the potential difference
P between the points a and \( \mathrm{b} \) is approximately (in volt)

W
(A) 2.7
(B) 2.3
(C) 3.7
(D) 3.3
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