Nodal Analysis ..Nodes between Battery and Resistance
@elecman, yes there is a node between the resistor and the battery. There are 4 nodes in that circuit. You've detected one which is between the 10 ohm resistor and the 4v battery. The ground can be considered as a node as well. I'll let you identify the other 2 nodes. Do you know how to get the Nodal Analysis Equations for this circuit?