DP 4.1 (50 points) [This problem is pertinent to Section 18-5 of the Textbook.] In this figure, suppose that the resistances of these resistors are R1= 77 Q , R2 = 62 Q , and R3 = 87 Q, respectively. Obtain the equivalent resistance between points A R1 and B for the system of three resistors shown in this A B figure. Express your answer using two significant figures. R3 WW DP 4.2 (50 points) [This problem is pertinent to Section 18-6 of the Textbook.] Consider the circuit diagram shown in this R, figure. The resistances for the resistors are R = 6.0 0 and R = 12 0, respectively. The ww terminal voltage of the battery is 12 V, and there is no internal resistance for this battery. Compute the electrical power dissipated by each resistor. 12 V