Problem 2 Must show all steps and workings. Show units for each item. 8 ΚΩ 15 kΩ 25 V a 12 kΩ 10 ΚΩ a) For the circuit above, calculate: i) Va ii) Vb iii) Vab b) Now consider that all the resistors...

Extracted text: Problem 2 Must show all steps and workings. Show units for each item. 8 ΚΩ 15 kΩ 25 V a 12 kΩ 10 ΚΩ a) For the circuit above, calculate: i) Va ii) Vb iii) Vab b) Now consider that all the resistors placed in the circuit are bulbs. What will happen to the brightness of each bulb if a third branch of resistors (25KN and 20KN) is placed in parallel with the previous two? Write only - increase/decrease/no change.