Find the magnitude and direction of the current flowing through the resistance \( R \) in the ci...

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Find the magnitude and direction of the current flowing through the resistance \( R \) in the circuit shown in Fig. 3.44, if the emf's of the sources are equal to \( \mathscr{E}_{1}=1.5 \mathrm{~V} \) and \( \mathscr{E}_{2}=3.7 \mathrm{~V} \) and the resistances are equal to \( R_{1}=10 \Omega, R_{2}=20 \Omega, R=5.0 \Omega \). The internal resistances of the sources are negligible.
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