current flow

[cancer1123]

I have several friends telling me varying things so I just want to verify:
That for a power source represented by one large line and one smaller one the larger one is the cathode
And that current flows from Cathode to anode and electrons flow opposite, (i.e. current flow direction doesnt equal electron flow direction)
Clearing this up would be great, thanks

[kalopsia]

Yes, that should be correct.
Current (or conventional current) flows from the cathode to the anode. On the other hand, the electrons flow in the opposite direction, from the anode to the cathode (electron current). So, when you draw the symbol, the current flows from the larger line, the cathode, to the smaller one, the anode.