The energy of the magnetic field of a coil with an inductance of 5 h at a current of 0.4 A is equal to

univerkov | December 2, 2020 | education

We find the energy of the magnetic field of the coil by the formula, where L is the inductance, and I is the current
W = LI ^ 2/2 = 5H * (0.4A) ^ 2/2 = 0.4J.
Answer: 0.4J.

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