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kph2015 kph2015
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10 years ago
A long straight wire carrying a 4-A current is placed along the x-axis as shown in the figure. What is the direction of the magnetic field at a point P, located at y = 0.02 m, due to this wire?


along the +x-axis
along the -x-axis
out of the plane of the page
into the plane of the page
along the +y-axis
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#1
Staff Member
Educator
10 years ago
Quote from: kph2015 (10 years ago)
out of the plane of the page

from right hand thumb rule magnetic field is a circle around conductor.hence draw a tangent to find direction of B at that point.
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