I think most people would assume the bottom node to be ground, so that is what I did. So using Ohms law, the node between the 12v source and 6 ohm resister is
-6.66 v. That would make the top node = 5.34 v. Then if we travel down the center branch, the voltage source causes the center node to be reduced by 3 volts, resulting the that node voltage = 2.34 v.
Thanks. joejester and liketelsa.
sorry..One more question here :
A parallel-plate capacitor has a capacitance of 300pF. it has 9 plates, each
40mm x 30mm, separated by mica having a relative permittive of 5. Calculate the thinkness of the mica.
The answer is (1.416mm).
The answer is given but i just cant get the working right. Can someone nice work this out for me???