the role of transforemers is to step down the ac voltage to desire value to be converted in dc
Transformers don't work with DC supplies - they only work on AC.
No, unless you have a pulsating DC
All transformers are a.c. machines.
Transformers are not used on DC circuits because they rely on a varying magnetic field to transform power.
No. Transformers only work with AC. Tongue-voltage is DC.
I know that they made Transformers Revenge Of The Fallen in Egypt and in Washington DC.
These devices are not transformers, but toroid hall effect sensors. That is how they can sense DC.
The DC output will be zero because transformers do not operate on DC there would be a slight peak when switched but then it would settle to zero. Transformers require a changing magnetic field to transfer power.
No. Transformers work in AC systems, not in DC systems.
No. Transformers only work with AC. Tongue-voltage is DC.
First, there are no DC transformers, transformers work on AC. If you have an AC/DC wall converter that has an output of 7.2 v DC, and a max current load of 400mA, then you can use this to power a DC motor that requires less than (7.2 x .4 = ) 2.88 watts of energy.
Supplies of class 2 transformers can be found on Foster Transformer, Amazon, eBay, Surveillent, B&H Photo-Video-Audio, Sears, Altex Electronics, and Signal Transformer.