J
John Popelish
- Jan 1, 1970
- 0
OK I've put up a crude drawing at
http://myweb.cableone.net/zirconx/LEDammeter.gif
LEDs are available that run off as little as 2ma of current.
Unfortunately for your circuit, they take several volts across them
before that 2 ma. will pass through them. If the battery cable drops
that much voltage, it will glow in the dark.
If I had two wires to run power from the battery to the bike, current
would run through both of them. This is essentially what I am doing
here, but one wire has much less resistance than the other and the
other has an LED in it. Could I get 2ma would flow through the other
wire?
Through a wire, yes. Through an LED in series with that wire, no.