In the circuit shown in Fig. E26.20, the rate at which R1 is dissipating electrical ener...

In the circuit shown in Fig. E26.20, the rate at which R₁ is dissipating electrical energy is 15.0 W. (a) Find R₁ and R₂. (b) What is the emf of the battery? (c) Find the current through both R₂ and the 10.0-Ω resistor. (d) Calculate the total electrical power consumption in all the resistors and the electrical power delivered by the battery. Show that your results are consistent with conservation of energy.