A Power supply is connected to a parallel circuit with resistance R, there are three wires connected in parallel where the voltages would be the same,however, the current would be dived based on the number of wires and the resistance is the same. What would happen if wire (c) was placed in a changing magnetic field, and there is an induced EMF as diagram here: With two cases, one the polarity is opposing the power supply and and the other case is the induced EMF's polarity supporting the power supply as the diagram above. What is the resulting voltage? If the induced EMF is opposing the power supply then the EMF would be: ##V_ps - V_e##, and if the voltage is supporting the power supply(as the second diagram) the voltage is added? I could not predict the outcome when thinking about the theory.