Researchers at University of Tsukuba have developed a nondestructive method for identifying the authenticity of individual batteries by attaching a magnetic sensor to the battery casing and measuring ...

Students predict the direction of current flow (or lack thereof) during interactions between a coil and a permanent magnet, then observe the experiment. They then repeat this for interactions between ...

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 ...