4. (10 points) Use Ohm's law to solve the following problems.

a. Determine V, in the following circuit.

1.2 A

b. Determine V₂ in the following circuit.

+ V₁

ww

50

12 V

(0.1V₂) A

10 mA

V₂

+

c. Determine is in the following circuit.

50

100

4 KQ

V₂

20

20

(0.1V:) A

20

2.5 A

d. How much power is dissipated by the 8k resistor in part c?

40

M

19 V

サル

.8kQ