Collect information of expenment done
by Faraday .
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Faraday developed a system that showed, moving magnetic field produces electricity. ... He discovered that, if the number of magnetic lines of forces changes, an emf is produced in the circuit. This process is collectively known as electromagnetic induction
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When Michel Faraday made his discovery of electromagnetic induction in 1831. He hypothesized that changing magnetic field is necessary to induced current in a nearby circuit. In his experiment he moved a magnet back and forth inside the coil. When he moves the magnet back and forth noticed that the galvanometer needle move, indicating that a current is induced in the coil. Notice also that the needle immediately returns to zero when the magnet is not moving. Faraday confirmed that a moving magnetic field is necessary in order for electromagnetic induction to occur.
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