At right is a basic circuit model of real batteries. Explain how the internal resistance affects the voltage the (real) battery can supply. Explain how it affects the energy one can extract from the battery.

For the circuit shown in Figure 2, Determine the current through each circuit HINT: There are 5 unknown current values. This can be solved by writing a system of 5 independent equations for the 5 current values OR you may simplify the circuit (while being sure not to change any connection between batteries!) and then solve for 3 unknown current values and find the remaining 2 current values by analyzing the original circuit. 2. Determine the power input to the circuit by the batteries and the power dissipated from the circuit by the resistors. Demonstrate that energy is conserved by showing that “Power in = Power out”. HINT: What happens when current flows into the positive terminal of a battery instead of out of it?

The diagram at the right shows two identical resistors - R₁ and R₂ - placed in a circuit with a 12-Volt battery. The electric potential difference (voltage drop) across each resistor is___ Volts. 12 6 O 24 R1 -W +++ 12 V R2

Six circuits containing a battery and two or more bulbs are shown here. D. What are the total resistance Rtot and the current flowing from the battery I in circuit 2?Rtot =  ΩI =  AE. In circuit 3, how is bulb C connected to A and B?  ---Select--- series parallel neither What are the total resistance Rtot and the current flowing from the battery I in circuit 3?Rtot =  ΩI =  AF. In circuit 6, how is bulb C connected to A and B?  ---Select--- series parallel neither What are the total resistance Rtot and the current flowing from the battery I in circuit 6?Rtot =  ΩI =  A