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A circular coil has 15 turns of radius 8.5 cm and… | StemPy Lab

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A circular coil has 15 turns of radius 8.5 cm and carries 3.4 A. What is the field at its centre? Take µ₀ = 4π × 10⁻⁷ T m/A.

PhysicsMediumHigh School (11–12)Electricity & Magnetism › Magnetic Effects of Current NEET AP A-Level IB

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A circular coil has $15$ turns of radius $8.5$ cm and carries $3.4$ A. What is the field at its centre? Take $\mu_0 = 4\pi \times 10^{-7}\ \text{T m/A}$ .

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← The magnetic field of a long straight wire is B at a distance r. What is the field at a distance 3r on the same side?A long air-filled coil is rewound with twice as many turns in every metre of its length, and the current through it is cut to half. How does the field on its axis change? →

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