A current of 10A is passing through a long wire which has
semicircular loop of the radius 20cm as shown in the figure.
Magnetic field produced at the centre of the loop is
[Orissa JEE 2003]
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The magnetic field produced at the center of the loop is T
Explanation:
Given :
Current passing through the loop 10 A
Radius of the loop m
From the biot-savert law, magnetic field in current carrying loop is given by,
Where
In our example loop is half so our above equation is modified as follows,
Hence, The magnetic field produced at the center of the loop is T
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