Friction and windage causes mechanical loss in DC machines.
chata matha .
IN SIMPLE WORDS: Friction turns mechanical energy into heat energy which causes a loss in mechanical energy and loss in possibility to continue motion..
Friction in the bearings and in the commutator, and windage loss. Electrical resistance of the armature and field windings and the brushes.
Electrical degrees and mechanical degrees in dc motors are related by the equation: Deg(elec) = (Number of Poles/2) *(Deg(mech))
Simple machines increase mechanical advantage.
The word "mechanical" means "of, or pertaining to, machines" - and machines are what mechanical engineers concern themselves with.
All DC machines are works based on the principle of FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION.
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05 types of dc machines
machines
A DC motor converts electrical energy to mechanical energy. The converted energy is provided to a mechanical load.A DC generator converts mechanical energy to electrical energy. The converted energy is provided to the electrical load (voltage, current referring load).A DC motor can be used as a DC generator and vice-versa.
Having to do with machines.