Question

What is the current induced in a straight wire when a magnetic field is turned from on to off?

Answer 1

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What is the current induced I'm a straight wire when a magnetic field is turned from on to of??????

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Then by either moving the wire or changing the magnetic field we can induce a voltage and current within

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Answer 2

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A changing magnetic field through a coil of wire therefore must induce an emf in the coil which in turn causes current to flow.