Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 5K views

    Lab. Equipments Familiarization

    Uploaded by

    ashfaqi
    To learn how to use electrical circuit lab equipment like a multimeter, breadboard, and power supply to measure circuit quantities. The document describes connecting resistors to a power supply on a breadboard and using a multimeter to measure the current, voltage, and power. It finds the measured resistor values are within the rated color code tolerances and the power supply voltages measured by the multimeter are close to the set values. The purpose is to familiarize students with basic circuit components and measurement techniques.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOC, PDF, TXT or read online from Scribd

    Lab. Equipments Familiarization

    Uploaded by

    ashfaqi
    5K views3 pages
    To learn how to use electrical circuit lab equipment like a multimeter, breadboard, and power supply to measure circuit quantities. The document describes connecting resistors to a power supply on a breadboard and using a multimeter to measure the current, voltage, and power. It finds the measured resistor values are within the rated color code tolerances and the power supply voltages measured by the multimeter are close to the set values. The purpose is to familiarize students with basic circuit components and measurement techniques.

    Original Description:

    Copyright

    © Attribution Non-Commercial (BY-NC)

    Available Formats

    DOC, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    To learn how to use electrical circuit lab equipment like a multimeter, breadboard, and power supply to measure circuit quantities. The document describes connecting resistors to a power supply on a breadboard and using a multimeter to measure the current, voltage, and power. It finds the measured resistor values are within the rated color code tolerances and the power supply voltages measured by the multimeter are close to the set values. The purpose is to familiarize students with basic circuit components and measurement techniques.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    5K views3 pages

    Lab. Equipments Familiarization

    Uploaded by

    ashfaqi
    To learn how to use electrical circuit lab equipment like a multimeter, breadboard, and power supply to measure circuit quantities. The document describes connecting resistors to a power supply on a breadboard and using a multimeter to measure the current, voltage, and power. It finds the measured resistor values are within the rated color code tolerances and the power supply voltages measured by the multimeter are close to the set values. The purpose is to familiarize students with basic circuit components and measurement techniques.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    of 3

    Objective:

    To have a knowledge about the equipments of electrical circuit lab as Multimeter, Breadboard, Power supply, Resistors and their color and to learn the correct method to measure the circuit quantities with each instrument.

    Equipments:
    a) b) c) d) e) The Digital Multimeter (DMM) to measure electrical components values. Breadboard to make a connection between electrical circuit part. The DC Power supply (PS). Wires. Five resistors have different values.

    Procedure:
    a. Measure the values of given five resistors using (DMM). b. Measure the values of given five resistors using the color code on each. c. Take the actual values for five resistors to compare them with the measuring values. d. Setup DC PS on (3, 6 & 8) volts (V) using DMM and compare the values with Multimeter values.. e. Connect a resistor has value equal to (1.8)K with (PS) has value equal to (5)V and place them on Breadboard. f. Measure the values of current through and voltage across and dissipated power of resistor.

    Data & Results:


    # 1 2 Resistor color code -------------red , violet , red , Gold orange, orange, red, gold Color code value (K) 2.70.05 3.30.05 Experimental value (K) 2.667 3.204 Theoretical value (K) 2.67 3.25 Percentage error (%) .119 .0142

    3 Brown, gray, red, , gold 1.80.05 1.779 1.8 0.08 4 Brown, black ,red , gold 10.05 0.988 1.0 0.0119 5 red, black , Brown , Brown 0.20.01 197.75 4.7 0 We can note from the last table that the actual values lie within tolerance color code values for all resistors. # ---------1 2 3 Value of DC PS using DMM (V) 3 6 8 Value of DC PS using Multimeter (V) 2.99 5.99 8 Percentage error (%) .33 .16 0

    Sample of Calculations:
    For second resistor: Theoretical value = 3.25 K. Experimental value = 3.204 K. Percentage error = ({(theoretical value experimental value)/}theoretical value)*100% = ({1.42% = 100%*(3.25/{)52.3 402.3( Color code value: orange orange Red Gold 3 3 *100 5% value =3.3 0.05 K. *resistance between your hands 1- R anas =220 K. 2- R hamza =290 K. 3- R Mohammed =750 K.

    To calculate the value of current (I) through resistor we will use the Ohms low:

    V = I*R

    where: I = current in Ampere (A). R = resistor in Ohm () V = voltage in Volt (V). I = V/R = 2.63mA. To calculate the dissipated power (P) through the resistor we use the following low:

    P = I*V
    P = I*V = 4.99*2.63 = 13.1237mW.

    Conclusion:
    In this experiment we learnt about the equipments of electrical circuit lab and use them to measure the components of the electrical circuit for example we connected the Ameter in series with resistor to read the value of the current through it and connected the Voltmeter in parallel with resistor to read the value of voltage across it. We faced many errors in this experiment as error in connect part of circuit and error in using the equipment and taking reading and using correct unit for our calculations ---etc.

    Reference:
    Electrical circuit Lab. manual.

    You might also like