physics #22

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A length of wire is bent into a closed loop and a magnet is plunged into it, inducing a voltage and,consequently, a current in the wire. A second lenghtof wire, twice as long, is bent into two loops of wire, and a magnet is similarly plunged into it. Twice the voltage is induced, but the current is the same as that produced in the single loop. why?

• physics #22 -

The second wire has twice the resistance of the first wire. Although voltage doubles, current stays the same.

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