In the circuit schematic shown, three vertical branches connect a top junction (Node \(N\)) to a grounded bottom wire (\(0\text{ V}\)). The left branch contains a \(20\text{ V}\) ideal battery (positive terminal facing Node \(N\)) and a \(2.0\text{ }\Omega\) resistor. The central branch contains a \(4.0\text{ V}\) ideal battery (positive terminal facing Node \(N\)) and a \(4.0\text{ }\Omega\) resistor. The right branch contains a \(12\text{ V}\) ideal battery (positive terminal facing the bottom wire) and a \(4.0\text{ }\Omega\) resistor. What is the magnitude and direction of the electric current in the central branch?