Which led wire is positive?

[cards1]

the two red squares are two led's, each have two wires, Which wire is positive in each square?

 

[kellys_eye]

the left-hand pad in each square is 'ground' (cathode of LED)

 

[cards1]

the left-hand pad in each square is 'ground' (cathode of LED)

what does it means? the left pad in each square is negative?

 

[kellys_eye]

In your particular example, yes, ground is negative.

 

[cards1]

In your particular example, yes, ground is negative.

thanks!

 

[dragon]

the left-hand pad in each square is 'ground' (cathode of LED)

how did u know? just curious, I'm no good at doing this yet.

 

[kellys_eye]

how did u know? just curious, I'm no good at doing this yet.

Experience plus learning - something you've been told about more than once but seem to ignore all advice.

 

[dragon]

We all learn in our different ways, Im developing too, it just doesnt seem like it when your a 3 fingered alien compared.

 

[kellys_eye]

We all learn in our different ways

You asked me 'how I knew'. Short-hand, I drink tea and read a lot. Long-hand, years of education and decades of experience. There are places that teach the basics as well as books and internet sites that offer the same knowledge/insight. It's not 'secret' nor is it forbidden to learn.

In the majority of your posts you speak of things that have been 'invented' in your own mind, NONE of which matches with current scientific thinking or practise. If you want to know how these things work then you MUST learn the basics and the science that supports it - not just imagine that what you're doing is 'correct' or even logical. Your worse failure is your abject belief in your computer models......

The forum will help those who want to learn but we have little patience for those that won't listen or, worse still, refuse to acknowledge the science that supports our assertions.