Circuits2

An alternating current and a direct current flows simultaneously in the same conductor. if the effective value of the alternating current is 5A and the direct current is 10 A, what will an AC ammeter read when connected in the circuit?

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  1. depends on the type of ammeter. Most would react to the energy, so
    aCenergy= I^2 R= 25R
    dcEnergy=I^2R=100R
    total energy=125R
    current= sqrt(125)=5sqrt5=about 11.2 amps

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    bobpursley

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