What is the equivalent resistance of each group of resistors shown in the figure below? In the figure, R1 = 2.0 1, R2 = 4.0 ohm, R3 = 6.0 ohm, R4 = 8.0 Ω, and R5 = 4.0 Ω.
What is the equivalent resistance between points a and b in the figure below? In the figure, R1 = 48 Ω and R2 = 46 Ω