CBSE Class 11-science Answered
Solve:Magnetism
Asked by | 20 Mar, 2009, 02:13: PM
Expert Answer
The magnetic needle has two forces acting on it, one due to the earth's magnetic field and the other due to the applied field. As a result it rotates through an angle of 40 degrees.
Use tan theta = horizontal component of earth's field/ applied magnetic field
Put theta = (90-40 )degrees = 50 0and horizontal component of earth's filed as 0.36T and calculate.
Answered by | 04 Apr, 2009, 04:10: PM
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