Hi
Locus means equation of a set of points.
For example - If I move at an angle of 45 degrees, my locus i.e. my path would be y = x
Did you notice that any type of question can be formed to find locus? So, we can't teach locus questions only.
If your base is strong, you can solve any question.
Do you want us to give you more examples of locus questions?
Here is one example. Let me know of any doubts or further questions.