It is depends on the application. If we need any variable speed in motor, dc motor will be better choice.
It can be operated using both AC or DC
we can convert a dc supply to an ac supply using inverters. Its a common operation which we observe in our daily lives dc can be converted to Ac using an undulator.
Televisions in buses can be either AC or DC current. It depends on whether the bus is using a DC to AC power convertor or an AC generator or DC power from the battery.
You can not change AC into DC using a transformer. A transformer changes the voltage levels. To change AC into DC, you would need a rectifier. To change that into smooth DC you need a capaciter and a voltage regulater
the answer is dc volts are rectified from ac volts and the amperage will be the same unless you account for the slight drop from the rectifier. dc volts from a battery have no relationship to ac volts. you can derive ac volts from a dc source using an inverter.
yes it is possible.we can convert dc into ac using inverter.this inverter is diff than our home inverter or using commutator.
Dc current can be changed to Ac current by using an undulator.Wrong!The devices that change DC to AC are:an electronic power invertera mechanical motor-generator set (only used in very high power stationary applications)an electromechanical vibrator (now obsolete)
You can power your DC toys with the AC power plugs in the house. Like a Radio without using batteries.
dc power supply
The easiest way would be to convert the AC power to DC by using a rectifier diode and a filter capacitor. In that way you can now run your DC motor on DC.
Ac would be better
A device called a power inverter.In old vacuum tube radios an electromechanical device called a vibrator was used.Another device is a motor-generator using a DC motor and an AC generator.