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A conductor consists of a circular loop of radius R = 20 cm and two straight, long sections as shown in figure. The wire lies in the plane of the paper and carries a current of i = 7.0 A. The magnitude of the magnetic field at the centre of the loop is: 1.93×10^−5 T 5.8×10^−5 T none of these 2.9×10^−5 T 2.5×10^−5 T

A conductor consists of a circular loop of radius R = 20 cm and two straight, long sections as shown in figure. The wire lies in the plane of the paper and carries a current of i = 7.0 A. The magnitude of the magnetic field at the centre of the loop is: 1.93×10^−5 T 5.8×10^−5 T none of these 2.9×10^−5 T 2.5×10^−5 T

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A conductor consists of a circular loop of radius R = 2 0 c m and two straight, long sections as shown in figure. The wire lies in the plane of the paper and carries a current of i = 7.0 A . The magnitude of the magnetic field at the centre of the loop is: 1.93 × 10 ∧ − 5 T 5.8 × 10 ∧ − 5 T none of these 2.9 × 10 ∧ − 5 T 2.5 × 10 ∧ − 5 T

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