100+ Circuit element resistor PowerPoint (PPT) Presentations, Circuit element resistor PPTs

Circuit element resistor - PowerPoint PPT Presentation

Chapter 28

Chapter 28. Direct Current Circuits. Direct Current. When the current in a circuit has a constant direction, the current is called direct current Most of the circuits analyzed will be assumed to be in steady state , with constant magnitude and direction

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Chapter 18

Chapter 18. Direct Current Circuits. Sources of emf. The source that maintains the current in a closed circuit is called a source of emf Any devices that increase the potential energy of charges circulating in circuits are sources of emf Examples include batteries and generators

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Direct Current Circuits

Direct Current Circuits. A current is maintained in a closed circuit by an emf (electromotive force) Battery. An emf forces electrons to move against the electrostatic field in the source. It is the work done per unit charge in volts.

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Circuit element resistor - PowerPoint PPT Presentation

Chapter 28

Chapter 18

Direct Current Circuits