Final answer:
The potential ethical concerns associated with Milgram's research on obedience include participant distress, lack of informed consent, and the challenge to the ethical principle of beneficence.
Step-by-step explanation:
The potential ethical concerns associated with Milgram's research on obedience include the extreme emotional distress faced by the participants who believed they were administering painful electric shocks to others. This raises concerns about the well-being and psychological harm of the participants. Additionally, there are concerns about the lack of informed consent, as the participants were deceived about the true nature of the experiment. Furthermore, the experiment challenges the ethical principle of beneficence, as the participants were subjected to distressing and potentially harmful situations for the sake of scientific progress.