A telephone cable at a place has four long straight horizontal wires carrying a current of...
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A telephone cable at a place has four long straight horizontal wires carrying a current of 1.0 A in the same direction east to west. The earth's magnetic field at the place is 0.39 G, and the angle of dip is 35. The magnetic declination is nearly zero. What are the resultant magnetic fields at points 4.0 cm below the cable? A telephone cable at a place has four long straight horizontal wires carrying a current of 1.0 A in the same direction east to west. The earth's magnetic field at the place is 0.39 G, and the angle of dip is 35. The magnetic declination is nearly zero. What are the resultant magnetic fields at points 4.0 cm below the cable?
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