MATERIALS AND EQUIPMENT: 22-ohm resistor, 10 watt 47-ohm resistor, 10 watt 56-ohm resistor, 10 watt 68-ohm resistor, 10 watt Variable de power supply Ammeter Voltmeter Clip leads ОВJЕСTIVES: 1. To investigate the laws of series circuits. 2. To analyze the operation of series circuits by application of series-circuit laws. 3. To become familiar with the application of voltmeters and ammeters. PROCEDURES: 1. Calculate the following for the circuit shown in Figure 5-1: the total resistance, total current, total power dissipated, and voltage drop. Now calculate the power dissipated across each resistor and record all the results in Table 5-1. 2. Connect the circuit in Figure 5-1, and measure the total resistance. 3. Set the power supply to 24 volts and measure the voltage across each resistor. Enter the results in Table 5-1. 4. Measure the current at points A, B, C, D, and E to prove that (I, = I, = 1, = I, = I). DATA AND RESULTS: Table 5-1 R, Calculated I, P, E, E, E, E, P P, P, P. values Measured values Ammeter RIS22 6. 8 R2<47 100 n DC POWER 14V SUPPLY B R3S56 120 KA R4<68 a loo L Figure 5-1

MATERIALS AND EQUIPMENT: 22-ohm resistor, 10 watt 47-ohm resistor, 10 watt 56-ohm resistor, 10 watt 68-ohm resistor, 10 watt Variable de power supply Ammeter Voltmeter Clip leads ОВJЕСTIVES: 1. To investigate the laws of series circuits. 2. To analyze the operation of series circuits by application of series-circuit laws. 3. To become familiar with the application of voltmeters and ammeters. PROCEDURES: 1. Calculate the following for the circuit shown in Figure 5-1: the total resistance, total current, total power dissipated, and voltage drop. Now calculate the power dissipated across each resistor and record all the results in Table 5-1. 2. Connect the circuit in Figure 5-1, and measure the total resistance. 3. Set the power supply to 24 volts and measure the voltage across each resistor. Enter the results in Table 5-1. 4. Measure the current at points A, B, C, D, and E to prove that (I, = I, = 1, = I, = I). DATA AND RESULTS: Table 5-1 R, Calculated I, P, E, E, E, E, P P, P, P. values Measured values Ammeter RIS22 6. 8 R2<47 100 n DC POWER 14V SUPPLY B R3S56 120 KA R4<68 a loo L Figure 5-1

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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2. To explore resistors in series and parallel, we will use a virtual lab for DC circuits. Open your web browser and go to the following site: https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction- kit-dc_en.html (a) Construct a circuit with resistors (or light bulbs) in series and record current and voltage. How does the current through the resistor (or the bulb) in a single-resistor circuit with the current through the same resistor when it is connected in compare series with a second resistor? (b) Now construct a circuit with resistors (or light bulbs) in parallel and record current and voltage. Compare the current through the battery in the series circuit with the current through the battery in the parallel circuit. Is it lower, the same, or higher?
If multiple capacitors are in a series circuit, describe how the total change can be found. What if the circuit is a parallel circuit?
2. For parallel circuits, you saw that the potential difference across each resistor was the same as the potential difference of the battery. Use your rule for potential difference in series circuits to explain why this would happen. Hint: Imagine following an electron as it leaves the battery, travels one of the paths through the circuit, and returns to the batter What is true about the changes in potential difference for the electron in each type of circuit? What would happen to the potential difference if you only had one resistor in series?
1. In each set of graphs below, the graphs go together and represent the Voltage and Current as a function of time for an R-C Circuit. For each set, determine whether the pair of graphs represents a charging circuit or a discharging circuit, and circle the correct answer. Also determine whether the vertical axis of each graph is for voltage or current and circle the correct answer. (a). Charging OR Discharging? (b). Charging OR Discharging? V(1) OR 1()? V(t) OR KO) ? t (sec) t (sec) V(t) OR 1(1)? V() OR 10)? t (sec) t (sec)
7. You want to reduce your carbon footprint in the next Yuletide season, so you plan to re-use last year's Christmas lights to your Christmas tree. You notice that one of the lightbulbs stops working but the other remaining bulbs are still in good condition. What is your hypothesis regarding how these lightbulbs are connected? Group of answer choices The lights are connected in a series circuit. The lights are connected in a parallel circuit. It would be impossible to determine the type of connection for the lights without dismantling the wiring. The lights are connected in a combination of series and parallel circuits.
6. A series circuit is comprised of 2 resistors R1 = 500 ohms and R2 = 1000 ohms and a capacitor of C = 470mF. The combination is suddenly connected across a 50V dc supply battery. Determine the time constant and the time when the capacitor charge reaches 20Coulombs.
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What is the cause of power dissipation in the circuit? Explain and why?
1. A series circuit has 3 resistors of values 10, 20, and 30 Ohms and a current of 2.0 Amps. What must be the voltage supplied to the circuit? a) 50 volts b) 250 volts c) 120 volts d) 25 volts 21V , 102 50 50 2. In the above 10-Ohm resistor, what is the current reading after the power supply? a) 0.60 A b) 3.0 A ) 1.2A d) 2.4A
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Which of the following are characteristics of series circuits? Select all that apply. The voltage is divided among all devices in the circuit.The same amount of current flows through all devices in the circuit.If one device in the circuit stops allowing current to flow, all other devices in the circuit will also stop functioning.The voltage across each device must be the same.There are multiple paths for current to follow through the circuit.There is only one path for current to follow through the circuit.