This will (maybe) be an easy question to answer. Here is my situation: I have a 12v 200mA capacity transformer (wall wart) that I am using to power up a relay which takes about 5mA and has an input voltage range of 5-24v. Basically I need to burn off the other 185mA or so of the transformer's capacity, that way the relay shuts off immediately when the transformer is unplugged instead of staying on while it drains the residual power in the transformer. I am not exactly sure what ohm of resistor I should use to do this or if that is even what i should use. Thanks for any help!