Base biasing transistor. Plzzz help! Need it urgent

[Tricaltronics]

I needed some help with base biasing transistor.

I need the equation that help me find a suitable value RB to provide a VCE of 5V, if the following info is given:

beta: 180
VBE: 0.7
VCC: 9V
RC: 1.5k ohms

 

[umesh49]

IC = beta*IB
VCE = VCC - IC*RC
IB = (VB - VBE)/RB

 

[amraldo]

What is VB?
--
Amr Ali

 

[kabiru]

Hi, what i realy want to know is are you using your transistor as a swich or an amplifier? But VB means base voltage.

 

[umesh49]

Tricaltronics,
Kabiru already replied your query.