Notes Nature of Electromagnetic Radiation A changing magnetic field produces an electric current: this is how dynamos work: you wiggle a magnet around near a wire, and the electrons in the wire move.
(A changing magnetic field; produces; an electric current) (you; wiggle around; a magnet) Context(you wiggle around,List([124, 150))):(this; is; how dynamos work) Context(this is you wiggle around,List([98, 150))):(dynamos; work; )
you wiggle around,List([124, 150)) this is you wiggle around,List([98, 150))
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