Yes, if the fan is designed to work on DC voltage, otherwise no.
A fan can use both voltages depending on what the manufacturer nameplates the motor voltage to be. AC is the most common voltage but some smaller fans like power supply fans in computers use a DC voltage. Check the fan motor's nameplate to supply the correct voltage.
it creates a dc current
Yes. Input DC voltage would be root2 times the input AC voltage.
If fan is supplied DC power of quantum for which its motor is desigened, it will work properly.
There is only 1 type of DC voltage, and that is direct current. In order to better answer your question, you need to be more specific.
By installing the varialble resistor in the circuit,the constant dc voltage would change .
How do you convert 23 voltage DC to 230 Voltage AC?
No, on dc the power is measured by the produce of the voltage and current so there is no need for a wattmeter, which would not work on dc anyway.
luo converter is a new technique adopted for dc to dc voltage lifting(dc voltage boosting)...
No, an AC dimmer switch is designed to work with AC-powered devices, not DC. DC fans require a different type of dimmer switch specifically rated for DC power. Using an AC dimmer switch on a DC fan can potentially damage the fan or the switch itself.
There is no transformer used in PC power supply. There is rectifier used to rectify or convert AC input voltage into DC output voltage.Transformer based rectifier produces some spikes at the output DC voltage, hencethey uses SMPS (Switch Mode Power Supply) to avoid spikes to the output DC voltage and get a smooth DC voltage.
DC Voltage