NCERT 4.4 - Moving Charges and Magnetism
Question: A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line? Also at 1.5 m above the line?
Answer: 1.2 × 10⁻⁵ T (Below: South; Above: North)
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