no unless some commutator like device is used
DC Motor works on DC source and AC motor works on AC source
no
dc series moter
this works with both.
Halfwave or fullwave or polyphase AC to DC?
The bulb works under AC
A halogen bulb works equally well with AC or DC.
A variable speed module in a motor can work with ac or dc source
I assume you mean : will AC wiring carry DC, and the answer is yes. But many appliances require AC to work.
It depends on the motor. The fan is driven by an electric motor, and it can use a dc motor (as in a car) or an ac motor (as in a house). They are not interchangeable.
The Siemens DC drive is a masterdrive which is utilized on an Integrated Device Electronics Chain. The DC drive works by suppling AC and DC power to the drive.
An AC transformer works by changing the magnetic field going through a coil. The change is unavailable in the case of DC. It is possible to convert DC to AC (with an inverter) and then change the AC voltage to another value and rectify it to get DC at a different voltage.