How can I set the SRC attribute to an IFRAME with JQuery?

You can set the SRC attribute of the iFrame using JQuery like following:

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
</script>
<script>

     $(document).ready(function(){

          $("#btn").click(function () {
          
             $("#iframe").attr("src", "Home.aspx");
             return false;

          });

      });

</script>