Here is a quick guide on how to do it:
Add an Email component as one of your question types in your survey or form to get the respondent's email ID.
Under Settings -> Notifications -> Email Notifications -> Respondent Notification select Send a notification to as the question that gets the respondent's email ID in the survey.
You can add the subject and body of the mail and check the Send a notification with a detailed response box to select the details that must be shown to the respondent.
Click Subscribe.
Can I be notified when I receive responses? Click here!
Give it a try! When the respondents complete the survey successfully their results will be notified through email.