Calculate the inductance in the coil through which a current of 0.4 A flows if the magnetic field energy of the coil is 32 mJ.
| December 21, 2020 | education
W = LI ^ 2/2
W- magnetic field energy
L-inductance
I-current
32 * 10 ^ -3 = L * 0.4 ^ 2/2
0.032 = L * 0.4 ^ 2/2
0.064 = L * 0.16
L = 0.4
Answer: L = 0.4
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