A power line carries a current of 97 A west along the tops of 8.5-m high poles. 1) How does this compare with the Earth's magnetic field of about 1212 G? 2) Where would the wire's magnetic field cancel the Earth's field
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A power line carries a current of 97 A west along the tops of 8.5-m high poles.
1) How does this compare with the Earth's magnetic field of about 1212 G?
2) Where would the wire's magnetic field cancel the Earth's field?
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