Okay,the jack is plugged in properly. The problem is, while the audio is coming from the left Earbud, the right Earbud is dead. However, in Apple earpods, the controller (volume and on-off button) is in the right wire. This suggests, that the right side is getting the current. But, no audio is coming out. It was working fine all this morning, I listened to songs but since the evening, the right side is dead. Can you suggest a troubleshoot?
If you're still in your first year or have Applecare on your device you got the earpods with, call Applecare, they will set you up with a replacement pair.
The controls use the same wire as the microphone, which is independent from the right earbud. Most likely the problem lies in a disconnection in the right earbud itself.