Self-inductance of a solenoid, L,
A = πr2
r = d/2 = (0.150 cm / 2) (1 m / 100 cm) = 7.5 × 10-4 m
A metallic laboratory spring is typically 5.00 cm long and 0.150 cm in diameter and has 50 coils.
If you connect such a spring in an electric circuit, how much self-inductance must you include for it if you model it as an ideal solenoid?
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