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Figure A and B shown two long straight wires of circular cross-section (a and b with a<b). carryingcurrent Iwhich is uniformly distributed across the cross-section. The magnitude of magnetic field B varies with radius r ad can be represented as: |
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Answer» Figure A and B shown two long straight wires of circular cross-section (a and b with a<b). carryingcurrent Iwhich is uniformly distributed across the cross-section. The magnitude of magnetic field B varies with radius r ad can be represented as: |
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