I am aware that there are two methods of working out IE for a Voltage-Divider circuit. The first is: https://www.google.co.za/search?q=V...redoc.org%2Fdocs%2Findex-114597.html;2048;730 And then work out VE = VB - VBE And the second is: https://www.google.co.za/search?q=v...rcuits.com%2Fvol_3%2Fchpt_4%2F10.html;480;257 (VTH and RTH) I then tried to calculate a specific problem using both methods. The results were not consistent and varied. My question is can we use both methods (first and second above) interchangeably? Are there any differences between the two methods?