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Transcript
Ch. 23 Series and Parallel Circuits Milbank High School Sec. 23.1 Simple Circuits • Objectives – Describe both a series connection and a parallel connection and state the important characteristics of each – Calculate current, voltage drops, and equivalent resistance for devices connected in series and in parallel – Describe a voltage divider and solve problems involving one Series Circuits • Charge only has one path to follow • Potential difference (voltage drop) V = IR – In an electrical circuit, Vsource is equal to the voltage drops across your resistors R = Ra+ Rb + …. – Net change in potential of current is zero • Battery or generator raises potential Voltage drops • As current passes through a resistor, the potential drops an amount equal to the increase, and therefore, the net change in zero • Voltage divider – Produces a voltage of desired magnitude – Specialized resistor Parallel Circuits • Several current paths Sec. 23.2 Applications of Circuits • Objectives – Explain how fuses, circuit breakers, and ground-fault interrupters protect house-hold wiring – Analyze conbined series-parallel circuits and calculate the equivalent resistance of such circuits – State the important characteristics of voltmeters and ammeters, and explain how each is used in circuits
