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2. An infinitely long wire carries a current of 7 A directed into the page. An infinitely long hollow cylindrical pipe carries a current (uniformly distributed) of 7 A directed out of the page. Point A is located at the center of the hollow region inside the pipe. Note the scale : 10 cm (T) (10% of exam) what is the magnitude of the magnetic field at point A? (a) 1.00x10-6 T (b) 1.50x10-6 T (c) 2.00x10-6 T (d) 2.50x10-6 T (e) 3.00x10-6 T (f) 3.50x10-6 T (g) 4.00x10-6 T (h) 4.50x10-6 T

Can you help me to solve this? The answers are (f) and (d)

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2. An infinitely long wire carries a current of 7 A directed into the page. An infinitely long hollow cylindrical pipe carrie

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