Hello,
The concept of nodal analysis is clear to me, however in some circuits I get very confused when there is one element which I have not seen before/the circuit is not basic. There are two questions I have, one is how many nodes are there in this circuit/where they are, and two, for writing the expression for the current leaving/entering pertaining to the 2 kOhm resistor on the top when to use the form (V1-V2)/R or simply V2/R. I have attached the circuit in question and also attached a screenshot of how I obtained -14V.
The concept of nodal analysis is clear to me, however in some circuits I get very confused when there is one element which I have not seen before/the circuit is not basic. There are two questions I have, one is how many nodes are there in this circuit/where they are, and two, for writing the expression for the current leaving/entering pertaining to the 2 kOhm resistor on the top when to use the form (V1-V2)/R or simply V2/R. I have attached the circuit in question and also attached a screenshot of how I obtained -14V.