In Hefei, China, physicists switched on a new machine that pushed magnetic fields to record strength. As the device powered up, it held a magnetic field more than 700,000 times stronger than Earth’s ...
A permanent magnet changes the flux through coil, generating a voltage that can be read by an analog voltmeter (you can pretend it's a galvanometer). Connect the voltmeter to the coil or to the DAQ ...
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