Transcription of Chapter 7 Direct-Current Circuits
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Chapter 7 Direct-Current Circuits
Chapter 7 Direct-Current Circuits Electromotive Resistors in Series and in Kirchhoff s circuit Voltage- current RC Charging a Discharging a Problem-Solving Strategy: Applying Kirchhoff s Solved Equivalent Variable RC Parallel vs. Series Resistor Conceptual Additional Resistive Multiloop Power Delivered to the Resistor RC Resistors in Series and 7-1 Direct-Current Circuits Introduction Electrical Circuits connect power supplies to loads such as resistors, motors, heaters, or lamps. The connection between the supply and the load is made by soldering with wires that are often called leads, or with many kinds of connectors and terminals.
the potential energy is converted into thermal energy in the resistor. Assuming that the connecting wire carries no resistance, upon completing the loop, the net change in potential difference is zero, ε−IR=0 (7.2.3) which implies I R ε = (7.2.4) However, a real battery always carries an internal resistance r (Figure 7.2.3a),
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