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In a coaxial cable, a thin straight conductor is fixed along the axis of an outer hollow conductor. The two carry equal currents flowing in opposite directions. Let X denote the region between the two conductors and Y denote the region outside the outer conductor. The magnetic field is zero in (a) Y but not in X (b) X but not in Y (c) both X and Y (d) neither X nor Y |
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Answer» Correct Answer is: (a) Y but not in X |
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