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PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 [Insert puzzler here] DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 1 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 AGENDA ITEM Introductory Concept Survey (Individual) Theory of Discharging and Charging Capacitors with Series Resistance Charging up a Capacitor Calculations Visual Charge/Discharge with Ultracapacitors Demonstration of Charge/Discharge Curve Using LabPro Concept Survey Re-vote (Group) Dismissal DURATION START 0:10 0:20 0:20 0:25 0:25 0:10 0:00 0:10 0:30 0:50 1:15 1:40 1:50 Announcements: • Please power and start your Labquest unit at the beginning of class. DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 2 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 1 of 3 A capacitor C = 1 mF is placed in series with a resistor R = 100 kW, and connected to a battery through a switch. Initially the switch is open, and the capacitor is completely discharged. Immediately after the switch is closed, the magnitude of the potential difference across the resistor is 1. 2. 3. greater than that across the capacitor. equal to that across the capacitor. less than that across the capacitor. V + R C DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 3 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 2 of 3 A capacitor C = 1 mF is placed in series with a resistor R = 100 kW, and connected to a battery through a switch. Initially the switch is open, and the capacitor is completely discharged. At a time 1 s after the switch is closed, the magnitude of the potential difference across the resistor is 1. 2. 3. greater than that across the capacitor. equal to that across the capacitor. less than that across the capacitor. V + R C DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 4 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 3 of 3 A capacitor is connected to a resistor through a switch. Initially the switch is open, and the capacitor is charged with a charge Q to a voltage V. After the switch is closed, the magnitude of the potential difference across the resistor, vR, is best represented by which selection: vR 1 V C R t vR 2 vR 4. V V t DEAN SIEGLAFF 3 NATHANIEL CUNNINGHAM BOB FAIRCHILD t The resistor voltage is zero at all times in this case. 5 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 AGENDA ITEM Introductory Concept Survey (Individual) Theory of Discharging and Charging Capacitors with Series Resistance Charging up a Capacitor Calculations Visual Charge/Discharge with Ultracapacitors Demonstration of Charge/Discharge Curve Using LabPro Concept Survey Re-vote (Group) Dismissal DURATION START 0:10 0:20 0:20 0:25 0:25 0:10 0:00 0:10 0:30 0:50 1:15 1:40 1:50 Announcements: • Please power and start your Labquest unit at the beginning of class. DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 6 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 1 of 3 A capacitor C = 1 mF is placed in series with a resistor R = 100 kW, and connected to a battery through a switch. Initially the switch is open, and the capacitor is completely discharged. Immediately after the switch is closed, the magnitude of the potential difference across the resistor is 1. 2. 3. greater than that across the capacitor. equal to that across the capacitor. less than that across the capacitor. V + R C DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 7 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 2 of 3 A capacitor C = 1 mF is placed in series with a resistor R = 100 kW, and connected to a battery through a switch. Initially the switch is open, and the capacitor is completely discharged. At a time 1 s after the switch is closed, the magnitude of the potential difference across the resistor is 1. 2. 3. greater than that across the capacitor. equal to that across the capacitor. less than that across the capacitor. V + R C DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 8 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 3 of 3 A capacitor is connected to a resistor through a switch. Initially the switch is open, and the capacitor is charged with a charge Q to a voltage V. After the switch is closed, the magnitude of the potential difference across the resistor, vR, is best represented by which selection: vR 1 V C R t vR 2 vR 4. V V t DEAN SIEGLAFF 3 NATHANIEL CUNNINGHAM BOB FAIRCHILD t The resistor voltage is zero at all times in this case. 9 of 9 PHYS-1700/2100 II8 The RC Series Circuit NEBRASKA WESLEYAN UNIVERSITY SPRING 2014-2015 PROJECTION SCREEN 1 4 1 4 1 4 1 4 2 5 2 5 2 5 2 5 3 6 3 6 3 6 3 6 HAND IN TODAY’S ACTIVITIES SHEETS DEAN SIEGLAFF NATHANIEL CUNNINGHAM BOB FAIRCHILD 10 of 9