Spinning compass under the influence of the rotating magnetic field device.
Objective : to test the influence of the rotating magnetic field device on a magnetic compass
Conclusions : the compass needle follows the rotating magnetic field
About Earth’s magnetic field
At the heart of our planet lies a solid iron ball, about as hot as the surface of the sun. Researchers call it the inner core. The outer core is the source of the geomagnetic field.The flow of liquid iron generates electric currents, which in turn produce magnetic fields. Charged metals passing through these fields go on to create electric currents of their own, and so the cycle continues Our planet’s magnetic field is believed to be generated deep down in the Earth’s core. Nobody has ever taken the mythical journey to the centre of the Earth, but by studying the way shockwaves from earthquakes travel through the planet, physicists have been able to work out its likely structure.
Materials used in this experiment :
Rotating magnetic field device
RMF device details :
http://sciencetoolbar.com/rotating-magnetic-field/ science experiments
In this experiment the rotating magnetic field (RMF) device is placed over the magnetic compass. The compass magnetic needle is rotating in uniform and rotating magnetic field.
A compass needle will align itself with external magnetic fields. If the external field is static then the compass needle will remain stationary. If the external field is in motion, changing direction, the compass needle will follow accordingly.
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The position of the spinning neodymium sphere placed over the magnetic compass
science experiments : Spinning magnetic compass under rotating magnetic field influence experiment
rotating magnetic field device