Federalism is the mixed or compound form of Government, in which Government acts as a single political system by combining Federal/Center Government with Provincial/state governments.
In this type of government, Government at country level have Federal/Enumerated powers which are quite stronger than the other, and we can see that in the case of Emergency, in passing the laws etc.
Government at State level has "State/Provincial" powers, which are limited under their territory and they are quite weaker as compared to federal powers.
Now, Concurrent Powers are the power of both Government at certain level, this is the combined list of what both Governments can do at a same time, for a same issue.
Hope this helps!
