calculate total current in this circuit

Discussion in 'Homework Help' started by ericyeoh, Oct 25, 2009.

  1. ericyeoh

    Thread Starter Active Member

    Aug 2, 2009
    58
    0
    do we need to assume the current that pass by the motor?
    if not, how cound we know how many current pass throught the motor and the total current in this circuit?
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Have you considered using a small valued resistor less that 1 ohm in series with the positive power supply input across which you could measure the voltage with a digital voltmeter. Then use Ohms Law to calculate the current.

    hgmjr
     
  3. ericyeoh

    Thread Starter Active Member

    Aug 2, 2009
    58
    0
    Can explain in more detail?
     
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