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A conducting circular loop of radius a i...

A conducting circular loop of radius a is connected to two long, straight wires . The straight wires carry a current I as shown in figure . Find the magnetic field B at the centre of the loop.

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Magnetic field at P due to each straight wire is zero. B due ot ABC and ADC at P is equal in magnitude but opposite in direction. Hence net `B atP = O`.
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HC VERMA-MAGNETIC FIELD DUE TO CURRENT-Exercises
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  8. A circular loop of radius r carrying a current i is held at the centre...

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  9. Find the magnetic field B due to a semicircular wire of radius 10.0 cm...

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  10. A piece of wire carrying a current of 6.00 A is bent in the form of a ...

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  16. A long, cylindrical tube of inner and outer radii a and b carries a cu...

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  17. A long, cylindrical wire of radius b carries a current i distributed u...

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  18. A solid wire of radius 10 cm carries a current of 5.0 A distributed un...

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