voltage

Discussion in 'General Electronics Chat' started by amaresh92, Nov 29, 2010.

  1. amaresh92

    Thread Starter New Member

    Oct 31, 2010
    23
    0
    greetings
    what is the difference between voltage and voltage drop?
    thanks
     
  2. iONic

    AAC Fanatic!

    Nov 16, 2007
    1,420
    68
    They are both measurable with your multimeter. With a battery you measure a voltage potential, with resistive components you measure voltage drops.

    iONic
     
  3. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    1,571
    230
    voltage is a static measurement, like pressure. Voltage drop is a dynamic measurement, indicating current flow.
     
  4. Melnic

    New Member

    Nov 29, 2010
    4
    0
    You often hear people talking about voltage drop when they compare a voltage upstream from the source downstream to a device or after something else. Like if you have a 12V power supply and a device pulling 10 amps. If the resistance of the wire (both combined) is .1 ohms then the VOLTAGE DROP across the wire supplying the device (ohms law) is 10A x 0.1ohms = 1 volt Thus your device sees 11V.
    "the voltage drop across the cable is 1 volt" [​IMG]
     
  5. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Both are potential differences which in that case we call voltage. Voltage drop is a name given to a voltage which is usually across a component within a network, however, this is a voltage too.
     
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