Q4: A straight power line carries 30 A and is perpendicular to the Earth's magnetic field of 0.50 x 10-4 T. What magnitu
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Q4: A straight power line carries 30 A and is perpendicular to the Earth's magnetic field of 0.50 x 10-4 T. What magnitu
Q4: A straight power line carries 30 A and is perpendicular to the Earth's magnetic field of 0.50 x 10-4 T. What magnitude force is exerted on 100m of this power line?
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