EET-117 LAB 6 F21

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Centennial College *

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Dec 6, 2023

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Centennial College ELECTRICAL ENGINEERING TECHNICIAN & TECHNOLOGY Course: EET-117 Name Patrick Abraham Student Number 301192737 Date Nov 7, 2023 Lab #6 SERIES CIRCUITS Based on Experiments in Basic Circuits by David Buchla Objectives: 1 Use Ohm's law to find the current and voltages in a series circuit. 2. Apply Kirchhoff's voltage law to a series circuit. Required Instruments and Components: Power supply DMM (Digital Multi-meter) Breadboard Alligator test leads (from the EET-117 labkit) Resistors: 330 Ω, 1.0 kΩ, 1.5 kΩ, 2.2 kΩ (from the EET-117 labkit) 1 | P a g e

Procedure 1. Obtain the resistors listed in Table 1 . Measure each resistor and record the measured value in Table 1. Compute the total resistance for a series connection by adding the measured values. Enter the computed total re s istance in Table 1 in the column for the listed value. Reminder of steps to measure resistance using lab DMM (reference to the manual): 1. Connect the device under test to the instrument, as shown: 2. Select a resistance measurement function: • Press 2 to select 2-wire ohms. Ω 2. Connect the resistors in series, as illustrated in Figure 3. Measure the total resistance of the series connection and verify that it agrees with your computed value . Enter your measured value in Table 1. Fig. 3 Table 1. Measured and computed resistance values (use up to 3 significant digits, and metric prefixes) Component Listed Value Measured Value Marks R 1 1.0 kΩ 0.978k Ohms /1 R 2 1.5 kΩ 1.481k Ohms /1 R 3 2.2 kΩ 2.153k Ohms /1 R 4 330 Ω 329 Ohms /1 R T 5.03k 4.941k Ohms /1 Total /5 2 | P a g e

3. C o mplete the circuit shown in Figure 4, making certa i n that th e ammeter is connected in series ; otherwise damage to the meter may result . B e fo re a p p l ying p o wer, ask your professor to check the circuit . C o mpute the current in the circuit by su b stituting the source voltage and the total resistance into Ohm's law; that is: Fig. 4 Record the computed current in Table 2 . Apply power, and confirm that your computed current is within experimental uncertainty of the measured current . Record the measured current in Table 2. 4. In a series circuit, the same current flows through all components . We can use the total current from step 3 and Ohm's law to compute the voltage drop across each resistor . Compute V AB by multiplying the total current by the resistance between A and B . Record the results as the computed voltag e in Table 2. 5. Repeat step 4 for the other voltages listed in Table 2. 6. Measure and record each of the voltages listed in Table 2 . Table 2. Measured and computed values (use up to 3 significant digits, and metric prefixes) Computed Value Measured Value Marks I T 2.982 mA 3.05 mA /5 V AB 2.982 V 2.978 V /5 V BC 4.473 V 4.469 V /5 V CD 6.560 V 6.571 V /5 V DE 0.984 V 0.991 V /5 Total /25 3 | P a g e

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