- A battery has an emf of 12 V and an internal resistance of 0.02 ohms. An external resistor of 5 ohms is connected to the terminals of the battery. What is the output voltage of the battery?    A) 4.5 V  B) 11.95 V  C) 20 V  D) 8.7 V  E) 15.01 V

Consider the following circuit diagram, assuming the voltage is V = and all the capacitors have C = 2µF. 10v, C, C3 C5 a) By finding the equivalent capacitance, and then working backwards, find the voltage drop across each capacitor, and the charge stored on each ca- pacitor. b) What is the energy stored in each capacitor? c) Now replace each capacitor with R= 20 resistors. By finding the equiv- alent resistance and working backwards, find the voltage drop across each resistor and the current through each resistor. d) What is the power dissipated by each resistor? What is the power deliv- ered by the voltage source?

26. Four resistors are connected to a battery as shown in the figure below, with ɛ = 15.0 V, R1 = 10.0 Ω, R2 - 20.0 Ω , R3- 40.0 Ω , and R4-30.0 Ω. %3D R2 R1 R4 AL R3 a) What is the equivalent resistance of the circuit? b) What is the potential (in volts) across each of the four resistors? c) What is the current across each of the four resistors?

6.0 V 9.0 V 1.0 Ω 1.0 2 Batteries a b R