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1.1.1.4 Lab – Ohms Law

Posted on March 25, 2018January 3, 2019 By Admin

Last Updated on January 3, 2019 by Admin

1.1.1.4 Lab – Ohms Law

  • Recommend
From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to "Online Test" link below.
Version 5.0 Version 6.0 Online Assessment
 Chapter 1  Chapter 1  Online
Next Chapter
 Chapter 2 Chapter 2 Online
Lab Activities
   0.2.2.2  Lab – Job Opportunities
   1.1.1.4 Lab – Ohms Law
   1.2.1.13 Lab – Research Computer Components
  1.3.1.7 Lab – Build a Specialized Computer System

Lab – Ohm’s Law (Answer Version – Optional)

Answer the following questions based on electricity and Ohm’s Law. Show all steps when solving problems.

Answer Note: Many of the formulas in this activity are beyond the scope of this course for many students. It is recommended to guide students through this activity if it will be used.

  1. What are the four basic units of electricity? Provide the variable name and symbol, and unit name and symbol.
    • ____________________________________________________________________________________
    • ____________________________________________________________________________________
    • Voltage (V), Volt (V)
    • Current (I), Amps (A)
    • Resistance (R), Ohms ()
    • Power (P), Watts (W)
  2. Write the equation for Ohm’s Law.
    • ____________________________________________________________________________________
    • V = IR
  3. Re-arrange the Ohm’s Law equation to solve the following:
    • I = _________________________________ R = _________________________________
    • I = V/R                                                                                 R = V/I
  4. Power is equal to voltage multiplied by current. Add the missing information in each of the following power equations.
    • P = V __________________ P = R __________________ P = V2 __________________
    • P = VI                                                P = RI2                                                        P = V2/R
  5. The yellow wire connected to a power supply carries 12V. If the power supply provides 60W of power to the yellow wire, how much current is passing through the yellow wire?
    • ____________________________________________________________________________________
    • I = P/V = 60W/12V = 5A
  6. There are 3.3V passing through an orange power supply cable, and there are 0.025 ohms of resistance in the orange wire. How much power is supplied to the orange wire by the power supply?
    • ____________________________________________________________________________________
    • P = V2/R = 3.3V X 3.3V/.25 = 43.56W
  7. A wire from the power supply is carrying 120W of power and 24A of current. Which color(s) of cable is the wire?
    • ____________________________________________________________________________________
    • V = P/I = 120W/24A = 5V
    • The wire color is either Red or White.
  • Recommend
From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to "Online Test" link below.
Version 5.0 Version 6.0 Online Assessment
 Chapter 1  Chapter 1  Online
Next Chapter
 Chapter 2 Chapter 2 Online
Lab Activities
   0.2.2.2  Lab – Job Opportunities
   1.1.1.4 Lab – Ohms Law
   1.2.1.13 Lab – Research Computer Components
  1.3.1.7 Lab – Build a Specialized Computer System
ITE v6 Student Lab Source Files Answers

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