should I use THHN wire or NM rommanx wire?

[kentma]

I used 1 inch emt conduit in the garage for 50 amp circuit for ev charger. I plan to use 4AWG wire. Please let me know which wire is est for passing through conuit, I also have less than 3 feet wire goes in the wall

 

[Megawatt]

I used 1 inch emt conduit in the garage for 50 amp circuit for ev charger. I plan to use 4AWG wire. Please let me know which wire is est for passing through conuit, I also have less than 3 feet wire goes in the wall

Use THHN single wires with # 6 wire using copper wire which should be an easy pull. Your ground should be # 10 copper