I have 10 Test cases and put those in a Population, i have chosen the Run time as per the below attachment.
I want to know how the 50 VUs are distributing among the 10 Test cases . Whether each test cases will get 50 VUs or something how?
When you put your 10 test cases i.e Virtual user profiles inside your population, you have to choose the weight of each profile. By default it's equal for each i.e 10% each in your case.
So by running 50VU's, you will have 5 VU's of each test cases that will be started. You can change the weight of each virtual user profile within your population to change that behavior.