Created by StemPy LabTwo coils of mH and mH are coupled with a coupling coefficient of one half. They are joined in series so that their fields oppose. What is the inductance of the pair?
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← A magnetic field carries 5.8 × 10⁴ J of energy in every cubic metre of space. How strong is the field? Take µ₀ = 4π × 10⁻⁷ T m/A.A coil of 40 turns and radius 4.0 cm is wound round the outside of a long solenoid of radius 2.5 cm, on the same axis. The solenoid has 1100 turns in each metre. What is the mutual inductance of the pair? Take µ₀ = 4π × 10⁻⁷ T m/A. →
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