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Full bridge rectifier A Full wave rectifier is a circuit arrangement which makes use of both half cycles of input alternating current (AC) and converts them to direct current (DC).  How it works- Depiction of the working of a full bridge rectifier Materials- 4 1N4007 diodes, a 500v capacitor ,  transformer of your choice(optional),  solder iron and solder metal. Procedure- Connect the diodes as shown in the figure and solder them . Connect the capacitor in parallel to the output wires(not shown).you can connect these arrangement to either a transformer or directly to the power supply. Precautions- Diodes are not supposed to be connected in reverse bias. A.C is dangerous, handle the apparatus carefully. You can keep the arrangement in a plastic box for safety purposes.

Making your own transformer So, basically a trans former is an arrangement of 2coils wound around a core which either steps up or reduces down the voltage(alternating). The principle of transformer is mutual inductance that if change in flux in a coil induces a change in flux of another coil then the coils are said to be coupled.and this phenomenon is called mutual inductance. Materials Iron core , 27SWG wire, 30 SWG wire, insulation like teflon tape Procedure 1. Take the core and wrap it first with teflon tape completely. 2.take the 30SWG wire and wind it on the core, evenly. 3. Now take the 27 SWG wire and wind it with comparatively lesser turns. Testing Once you are all done you can just connect it to the city power supply and test it with the help of a multimeter.you can choose any wire as input wire according to your need for a step up or step down transformer. Precautions 1 A.C. is really dangerous, handle all the things with care. 2. If there is a problem tha...