Physics · Electromagnetism
Inductance per unit length near the middle of a long solenoid is given by which expression? (μ0 = permeability of free space, n = number of turns per unit length, d = diameter of solenoid)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1μ0π(nd)24✓
- 24μ0πnd2
- 3μ0πnd2
- 4μ0πn2d
Correct answer
μ0π(nd)24
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