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In the Figure,a Straight Wire Carries a Current I

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In the figure,a straight wire carries a current I.The wire passes through the center of a toroidal coil.If the current in the wire is quickly reduced to zero,the induced current through the resistor R is In the figure,a straight wire carries a current I.The wire passes through the center of a toroidal coil.If the current in the wire is quickly reduced to zero,the induced current through the resistor R is   A)  from a to b. B)  from b to a. C)  There is no induced current through the resistor.


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