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Which circuit is wrong?

  1. Nov 24, 2015 #1
    1. The problem statement, all variables and given/known data
    http://imgur.com/KvhqcEg

    Which one of the circuits can cause damage in the ampmeter or voltmeter?
    2. Relevant equations


    3. The attempt at a solution
    I am guessing a). If the current is high enough then the ampmeter is going to get damaged because the electrons are only going through the ampmeter. At first I though c) was wrong but it is right cuz the circuit has a resistance
     
  2. jcsd
  3. Nov 24, 2015 #2
    Yes. You have it right.
    Amp meters offer little resistance, so you don't want to place them across a voltage.
    On the other hand, volt meters present a very high impedance and so have little effect on electric currents.
     
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