yes it is an exercice from a course related to power electronicshi aragon,
Is this a College assignment.?
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Vp=n *VB1B2+0.7V and VB1B2=VS/(R1+R2+RBB)The voltage at the junction of Rb1 and Rb2 is 7.44V , so add 0.7V to get 8.14V total .
According to the data sheet the definiiton (from data sheet) Vp=n * VB1B2+0.7Vhi aragon,
Check out this AAC link
https://www.allaboutcircuits.com/textbook/semiconductors/chpt-7/unijunction-transistor-ujt/
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