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Section 3 – Electricity from Magnetism p.54 A.) Electric Current from a Changing Magnetic Field p. 54 1.) Electromagnetic induction – the process of creating a current in a circuit by changing a magnetic field. 2.) Electric current is created when: a.) a magnetic field changes b.) a magnet moves through a coil of a wire c.) a wire moves between the poles of a magnet B.) Faraday’s Experiment P. 54 See Figure 1 1.) Faraday hoped the magnetic field of the electromagnet would make a current in the second wire. 2.) No matter the strength of the electromagnet, a current COULD NOT be produced in the second wire. a. The galvanometer pointer moved C.) Success for an Instant P. 55 a. Galvanometer – a device used to measure electric current in a wire. The pointer will move. b. Electromagnetic induction – creating a current by changing the magnetic field c. When connected to a battery there was no current i. Connected/disconnected wires changed the magnetic field (ONLY seconds of current produced)