Multimeter Use

Discussion in 'General Electronics Chat' started by Lightfire, Jun 3, 2011.

  1. Lightfire

    Thread Starter Well-Known Member

    Oct 5, 2010
    690
    21
    OK.

    Now, let me know this one.

    The maximum rating of the multimeter for ampere testing is 10 ampere.

    So, I guess my lamp did not exceed the maximum rating.
    my lamp ratings are 12v/5w

    OK, let me know if my multimeter for ampere testing usage is correct.

    BATTERY(-)<--LEAD(-)----->LEAD(+)--->LAMP<---BATTERY(+)

    Thanks
     
  2. Jaguarjoe

    Active Member

    Apr 7, 2010
    770
    90
    I think you got it! Use I = P/E and see if there's a correlation.
     
    Lightfire likes this.
  3. victorhugo289

    Member

    Aug 24, 2010
    49
    3
    The current for the lamp is 0.42 Amps.

    Check Tony Kuphaltd's book for Multimeter use:

    DC, Chapter 3, section 3.9 > "Safe meter usage", it's great!!
     
    Lightfire likes this.
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    And don't get confused if the resistance of the lamp makes no sense: You have to measure that when the lamp is HOT and ON, so just infer it from the voltage across and that current your measuring thru it.
     
    Lightfire likes this.
  5. Lightfire

    Thread Starter Well-Known Member

    Oct 5, 2010
    690
    21
    Thanks for the replies of all of you!!!!!!
     
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