Saturday, December 25, 2010

Module 5_DC Measurements

Dear Students
Answer the following questions......


  1. List three devices/appliances that operate on dc voltage and three devices that operate on ac voltage.

  2. A certain resistor has the following values:


  • Color code value=220 Ω,

  • Measured value = 223 Ω,

  • Tolerance = 5%
    Calculate the following values:

  • Tolerance

  • Max. Value

  • Min. Value

  • % Error

  • Within Tolerance?

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6 comments:

  1. osama2026December 30, 2010 at 1:56 AM

    DC devices
    1-mobile phone
    2-speaker
    3-Laptop

    AC devices
    1- A.C.
    2-neon lamp
    3-projector

    2nd Q

    5% +&-
    231
    209
    |220-223|/220 x 100% ≈ 1%
    yes

    ReplyDelete
  2. UnknownDecember 30, 2010 at 2:18 AM

    DC
    1) computer
    2) play station
    3) digital clock

    AC
    1) projector
    2) charger
    3) power output


    Tolerance = 5%
    Max Value = 231
    Min Value = 209
    Error = 0.986 %
    Within tolerance? yes

    SAEED TALAL AL JUNAIBI
    11-03

    ReplyDelete
  3. UnknownDecember 30, 2010 at 2:21 AM

    DC devices
    1-phone
    2-computer
    3-headset

    Ac devices
    1-projector
    2-condation
    3-fan

    2)

    5% +&-
    231
    209
    |220-223|/220 x 100% ≈ 1%
    yes

    Talal al hamily 11-03

    ReplyDelete
  4. UnknownDecember 30, 2010 at 3:04 AM

    This comment has been removed by the author.

    ReplyDelete
  5. UnknownDecember 30, 2010 at 3:15 AM

    1-
    Laptop / Mobile / watches

    Computer / TV / air condition


    2-
    a)+or-5%
    b)231
    c)209
    d){3/220}x100% = 0.98%
    e)yes

    Saeed Zaid Abdulla Saeed Mohammed AL Menhali
    11-03

    ReplyDelete
  6. UnknownJanuary 2, 2011 at 9:14 AM

    DC
    1) computer
    2) play station
    3) digital clock
    AC devices
    1- A.C.
    2-neon lamp
    3-projector
    quasttion 2
    5% +&-
    231
    209
    |220-223|/220 x 100% ≈ 1%
    yes

    ReplyDelete

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