1. The problem statement, all variables and given/known data Va - Vb = 6 Volts Calculate Vc - Vd = ? The circuit diagram is shown below :- All resistances are equal to "R" as shown in fig. except for 1 ohm and 2 ohm resisters. Two voltage sources 10V and 5V are given and a current source in parallel to 1 ohm resistor. 2. Relevant equations 3. The attempt at a solution: I thought of using KCl and nodal analysis method but the equations became quite complex. Though i thought that the current flowing through 2 ohm resistor will be equal to current flowing in branch connecting Vc and Vd that will be 3 ampere using KCL. Thus using kcl at node "M" current through 1 ohm resistor will be 5 ampere and thus voltage drop equals "5 volts = Vd - Vc". Therefore Vc - Vd equals -5 volts. Am i doing it right and is there any other method to solve this question ?