A solenoid 30 cm long is made by winding 2000 loops of wire on an iron rod whose cross-section is 1 .5 cm 2 . If the relative permeability of the iron makes it 600 . What is the self-inductance of the solenoid?

Question

A solenoid 30 cm long is made by winding 2000 loops of wire on an iron rod whose cross-section is 1 .5 cm 2 . If the relative permeability of the iron makes it 600 . What is the self-inductance of the solenoid?, 1 .5 H, 2 .5 H, 3 .5 H, 0 .5 H

MARKS App · Accepted Answer

Self-inductance of the solenoid L = μ 0 μ r N 2 A l = 600 × 4 π × 10 - 7 × 2000 2 × 1.5 × 10 - 4 0.3 = 1 .5 H

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