Cig lighter +ve/-ve

[Obs]

when you've got a device to put in is the centre bit poking out the +ve or -ve?

[smit]

put a test lamp on and find out, put it to a different earthing point and then to the centre point and then the outside point, when the light lights up that is the positve

[Martin]

what?


the cigy lighter socket:

the side wall will be negative (which is kind of obvious)
thus the circle at the bottom will be positive

[Gazza_DJ]

i thought cigarette lighters were DC, so it would be 12V and 0V (ground)??

[Martin]

i thought cigarette lighters were DC, so it would be 12V and 0V (ground)??


they are 12-14.4vDC...

[Gazza_DJ]

mmhmmm, sorry, mini brain fart. for some reason i thought you were talking about AC :slap:

[Obs]

ground is negative basicly in DC circuits

cheers me dears means the wire with the line on is +ve

[Gazza_DJ]

i know, i do have an AS in Electronics ;)

[Obs]

i know, i do have an AS in Electronics ;)

cool

would've liked to have done that my school didnt offer it did physics though

[Martin]

the plug END in the fag lighter will be positive, as the fuse fits in here

[Obs]

cool cheers marting