In my question I said if you only had an LED. That implies a resistor is not available.
Whether or not something is valued as a tool depends on the situation and the user. A blind man will not value an LED as a tool for illuminating a braille book. Harry On Sat, Feb 20, 2016 at 1:56 PM, Jed Rothwell <jedrothw...@gmail.com> wrote: > H LV <hveeder...@gmail.com> wrote: > > An LED is efficient at converting electricity into light but it is >> inefficient at converting electricity in to heat. So if you wanted heat and >> only had an LED how would you make it more efficient at producing heat? >> > > You wouldn't! Use a resistor. It converts 100% of the electricity into > heat. Nothing can be more efficient than that. > > Perhaps I misunderstand the question, but this seems like asking how to > use hammer in place of screwdriver. It is a bad idea. Although after > stripping several wood screws while assembling a shelf, my father once > picked up a hammer and pounded them down, saying "this is what we call a > Chicago screw driver." > > - Jed > >
