A=29 B=39 C=139 D=12 3. What is the potential difference VB - VA when the / = D/5 A in the circuit segment below? (10 points) 20 92 A . 20 V 12 V 4. If RI = B Q, R2 = B/5 02, R3 = D S, and 1 = 0.50 A, a. Calculate resultant resistance? (5 points) b. At what rate is heat being generated in these resistors? (5points) C . Calculate the net voltage on the circuit? (5 points) R3 5. Two resistors are connected in series, R, =B Q and R2= D 2 to a battery of 12 V. a. what is the voltage across R,? (5 points) b. what is the voltage across R2? (5 points) C. Calculate the current on the loop? (5 points) 6. Two lightbulbs A and B are connected in series to a constant voltage source. When a wire is connected across a and b, What can you say about the intensity of lights? (10 points) 12 V a 12 V 7. If the battery voltage is D V, and the resistances are R1=C/50 $2, R2=B/5 $2 and R3=D/2 0. (a) What is the total resistance? (5 points) (b) Find the current? (5 points) (c) Calculate the voltage drop in each resistor? (5 points) (d) Calculate the total power dissipated by the circuit? (5 points)