Help Me..!! Tor Browser

Hello friend,

Question No 1:

I am using Tor Browser. When I Click on New identity In tor I get every time new IP Or New Identity that good. But I want to ask what can I "Get an IP in a Specific Country" every time when I click on New Identity. If Yes Please Answer With Full tutorial.

Question 2:

What is the different Between New Identity And New tor Circuit for this site..?

Both of those questions are covered somewhere in TOR's documentation:
https://www.torproject.org/docs/faq.html.en

Thanks For Answer