Different between margine or free Margie

My dear friend kaya mj ko ki margine or free margine ma Jo different ha wo bta skta ha

dear forex market mein margin of free margin mein.
Zada farak nahi hai.
Ay aa ko btaon.
margin ye aap ka trading lot size ko show karta hai kay kitnay margin ki trade open hui hai.
Agar leverage zada hai to margin kam use ho ga.
free margin ye wo remained amount hoti hai. Jis kay mutabiq aap mazeed trade open kar saktay hain.