Alright, so I find the voltages of the resistors in parallel, and they are the same. Apparently, I just add the voltage of one of the resistors in parallel (3V) to the voltage of the 80Ω resistor (12V) that they are in series with. Then I have the voltage of the battery. Why is this so? Why do I...
Homework Statement
Four resistors are connected in a circuit with a battery of unknown emf, as shown below. The battery is ideal, so it has no internal resistance. The current in the 30Ω resistor is 100. milliamps.
C) Calculate power dissipated by the 20Ω resistor in watts.
D)Calculate the...