In this example, we will use the concept of equivalent resistance to determine the current in a circuit. Three identical
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What is the current through R1 in the network in this example if the resistors aren't equal, but instead R1=5.0Ω,R2=3.0Ω, and R3=4.0Ω ? Express your answer with the appropriate units. Part B - Practice Problem: What is the current through R2 ? Express your answer with the appropriate units.
What is the current through R3 ? Express your answer with the appropriate units.
Now let's apply Kirchhoff's rules to a simple battery circuit. The circuit, shown in (Figure 1), is used to start a car that has a weak (i.e., nearly discharged) battery (Figure 2). It includes two batteries, each with an emf and an internal resistance, and two resistors. Find the current in the circuit and the potential difference Vab. Figure
In this example, if the emf of the 4 V battery is increased to 13 V and the rest of the circuit remains the same, what is the potential difference Vab ? Express your answer with the appropriate units.