Multiple Choice
As shown in the figure,a straight wire carries a current I into the page.The wire passes through the center of a toroidal coil.If the current I is quickly reduced to zero,the direction of the induced current through the resistor R is 
A) from a to b.
B) from b to a.
C) No current is induced.
Correct Answer:
Verified
Correct Answer:
Verified
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