ok my source is 12 - 14vdc and i need it to be 5vdc. what resister value in ohms do i need to accomplish this and what formula is used to figure out the correct solution. second (mainly just a refresher Q) if i put a 1.5 amp fuse in line of a circut which is 25 amps, will only 1.5 amps pass through the fuse and pop only if the unit being powered up attempts to draw more than 1.5 amps? sorry if the questions seem very novice, but i am a novice to this and eager to learn.
Dave
Dave