In devices like Nexus 4,Nexus 7,Nexus 10 and other Android 4.2 plus devices the developer options is hidden. To make them appear in your Settings you should enable it first
Follow these steps to enable developer options:
1.Go to “Setting” in your device and tap on it.
2.Scroll down to “About Phone” and tap on it.
3.Now scroll to the bottom to find “Build Number” and tap on it 7 times ( Yeah 7 times)
If you have done it you will get a pop-up message saying “You are now a developer”. Thats it!!!
You can now see the Developer options in Settings where you can find USB Debugging.