Sensitive audio detector - solenoid help

Discussion in 'General Electronics Chat' started by cygnet, Mar 6, 2015.

  1. cygnet

    Thread Starter New Member

    Mar 6, 2015
    1
    0
    I'm attempting to do the "Sensing AC magnetic fields" experiment... how much AC voltage should I see across the coil of wires? No matter where I try (circuit breaker, TV, laptop, speakers, etc) I don't see anything more than 1 or 2mV AC (testing it with a multimeter).
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,986
    745
    Depends on how many turns of wire, size of former, magnetic field...
     
  3. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,797
    1,103
    Welcome to AAC!
    Most appliances are designed to generate only minimal external AC magnetic fields ;).
     
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