Physics questions

Physics Final Exam Review Read the scenario below and answer number 29: Four different resistors are created from the same piece of carbon. The length and the diameter of each resistor are shown. D 1. =4 cm 0 = 2 cm A L= em .=8 em B C 1. =4 cm De Icm 2= 2cm Delem 28. Which of the pieces are carbon has the least resistance? 29. Consider the circuit shown to the right: given that R, = 302, R, = 502, and R, = 702. What is the total resistance of the circuit? R3 30. Which circuit is constructed so that if one lightbulb goes out, the other three will continue to glow? a. 4 C. 8 8 b. d