The current in the coils is 10A. At what inductance of the coil its magnetic field energy is equal to 6J.
| May 28, 2021 | education
Task data: I (coil current) = 10 A; Wm (required magnetic field energy) = 6 J.
To determine the required inductance of the used coil, we apply the formula: Wm = L * I ^ 2/2, from where we express: L = 2Wm / I2.
Calculation: L = 2 * 6/10 ^ 2 = 0.12 G.
Answer: The coil used must have an inductance of 0.12 H.
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