Losses in DC Machines - Copper losses, iron losses, mechanical losses etc....

[@vvishaljacob]

Nice presentation

[@AlMuatazAlHabsi-ho4qk]

Thank you. It is very helpful.

[@luckystar4732]

Good class

[@VarunKumar-eh6xc]

The maximum efficiency of a d.c. motor occurs is 3/4th full-load. The constant losses are 900 watts. Then the full-load copper losses are:
1) 1200 watts 3) 1800 watts 2) 1600 watts 4) 2000 watts
Answer please 🥺🥺