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Find the inductance of a coil with turns 50, flux 3 units and a current of 0.5A

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in Electromagnetic Theory by (188k points)
Find the inductance of a coil with turns 50, flux 3 units and a current of 0.5A

(a) 150

(b) 300

(c) 450

(d) 75

I have been asked this question in semester exam.

I'm obligated to ask this question of Inductances in chapter Magnetic Forces and Materials of Electromagnetic Theory

1 Answer

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Right choice is (b) 300

The explanation is: The self inductance of a coil is given by L = Nφ/I, where N = 50, φ = 3 and I = 0.5. Thus L = 50 x 3/0.5 = 300 units.

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