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Homework Help: Using NaCl to conduct electricity?

  1. Mar 3, 2010 #1
    1. The problem statement, all variables and given/known data
    Okay, there's this point that NaCl conducts electricity. So I tried using it to burn a steel filament (a very small filament, like ones used in bulbs.) by connecting it as a switch in a circuit with a battery.

    The battery i used was 12 volts.

    2. The attempt at a solution

    So the circuit doesn't complete to burn the filament. However, I tried using the circuit to run a high rpm motor (300 rpm) and that worked. According to me, the filament should require much less current. However, it doesn't work in any case. What am i doing wrong?
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
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