R₁ Rs R₁₂ In the figure ε₁ = 3.74 V, 2 = 0.900 V, R₁ = 6.13 2, R2 = 2.35 2, R3 = 4.80 02, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R₁, (b) R2, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? (a) Number Mi Units (b) Number i Units (c) Number i Units (d) Number i Units (e) Number i Units <> <> <> <> <>

A typical cell phone consumes an average of about 1.00 W of electrical power and operates on 3.80 V. (a) What average current does the phone draw from its battery? (b) Calculate the energy stored in a fully charged battery if the phone requires charging after 5.00 hours of use.

Chapter 27, Problem 041 In the figure &₁ = 3.70 V, E2 = 0.987 V, R₁ = 5.78 , R₂ = 2.86 , R3 = 5.98 2, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R₁, (b) R₂, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? www R₁ -18₁ ww R₂ R₂₂ Erf Chapter 27, Problem 055 SN In the figure Rs is to be adjusted in value by moving the sliding contact across it until points a and b are brought to the same potential. (One tests for this condition by momentarily connecting a sensitive ammeter between a and b; if these points are at the same potential, the ammeter will not deflect.) Express Rx in terms of Rs, R₁ and R₂ in the case when this adjustment is made. Rs Ro -Sliding contact O F

Current Attempt in Progress In the figure &₁ = 3.71 V, E2 = 0.986 V, R₁ = 7.09 Q, R₂ = 1.820, R3 = 3.25 02, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R₁, (b) R2, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? www R₁ -18, www R₂ R₂ (a) Number i (b) Number (c) Number (d) Number Erf (e) Number Units Units Units Units Units