How to convert DC into AC?

Question

how to convert DC into AC

Answer 1

Your question is vague, do you mean a product or the theory?

You'll need a power inverter, the most common ones plug into the cigarette lighter of your car or hook onto some kind of battery.

Answer 2

Use rectifier diodes, which are inexpensive and widely available from outlets such as Radio Shack.  Depending on the application, filter capacitors may be needed to smooth the output.  It is important to understand the necessary voltage and current ratings (which depend on the load) before going shopping.

Answer 3

Rectifiers are used to convert AC to DC.  gtrplyraj is right - if you want to convert DC to AC you need a power inverter.