Transformer engineering is its' own specialty. If you want a deep explanation, I suggest you peruse some books on transformer engineering - I like the one with said name by Kulkarni and Khaparde (not great english, but understandable).
By using step-down transformer
A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.
Through a coupled inductor, similar to a transformer, but working on DC instead of AC.
A transformer cannot convert AC into DC.
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
transformer will work on ac
A transformer changes the VOLTAGE of AC current (AC to AC). A rectifier changes AC to DC.
By using step-down transformer
It is a step-down transformer.
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
Transformer is the only device which is capable to stepup or stepdown an ac signal. That's why its used widely in ac supply.
If its a triangular wave, its not DC, its AC, its just not sinusoidal. Can a transformer operate on triangular AC? Yes, but not as efficiently as on sinusoidal AC.
A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.
Yes, the AC current can be amplified by using Step-down transformers, but one problem is the AC voltage will decrease with Step-down transformer.
A transformer works with alternating current (AC). The primary coil of the transformer is connected to an AC power source, which creates a changing magnetic field that induces a voltage in the secondary coil.
Through a coupled inductor, similar to a transformer, but working on DC instead of AC.
By using a Variac Transformer