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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

graphene

  1. mading2018

    Change the current from a voltage source?

    So what I understand so far, if I want to have 16 A out from a voltage source (230 V RMS) which is 325.269 V in amplitude (peak), can I simply add an resistor in parallel to achieve that? R = 325.269 V / 16 A = 20.329 ohm Do you think guys if I am on the right track? So if I am want simply to...
  2. S

    Graphene, batteries and capacitors

    Hi there, It's widely predicted that graphene is going to revolutionise batteries and capacitors and hence the convenience of using gadgets, electric cars... etc I would like to build, and play with, a home made capacitor using graphene. However, i have no idea where to buy graphene or...

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