Questions
Find the magnitude of the magnetic induction B of a magnetic field generated by a system of thin conductors along which a current I is flowing at a point A (O, R, O), that is the centre of a circular conductor of radius R. The ring is in yz plane.
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Correct option is B
B→A=μ0R4πRk^+μ0I2Ri^-μ0I4πRj^ BA=μ0I4πR(2π-1)2+(1)2=μ0I4πR22π2-2π+1
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Two infinitely long straight parallel wires carry equal currents ‘i’ in the same direction and are 2 m apart. Magnetic induction at a point which is at same normal distance from each wire has magnitude
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