Oh look! There's a book under the bed! Maybe my sister left it!
HMMM.... SCIENTISTS AND THEIR CONTRIBUTIONS... sounds interesting
Andre Ampere - demonstrated the magnetic effect based on current direction
Ampere’s law, that describes mathematically the magnetic force between two electrical currents, which states that the mutual action of two lengths of current-carrying wire is proportional to their lengths and to the intensities of their currents.
Next scientist is.... Michael Faraday- formulated the principle behind electromagnetic induction.
Michael Faraday’s famous law of electromagnetic induction states: “that a voltage is induced in a circuit whenever relative motion exists between a conductor and a magnetic field and that the magnitude of this voltage is proportional to the rate of change of the flux”.