2. 10 А ток кезінде магнит ағыны 0,5Вб болатын соленоидтің магнит өрісінің энергиясын есепте
lakomka2018
2
28.08.2020 19:21
1
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1
Объяснение:
Дано:
I = 10 A
Ф = 0,5 Вб
W - ?
1)
Индуктивность катушки найдем из формулы:
Ф = L·I
L = Ф / I
2)
Энергия магнитного поля:
W = L·I²/2 = Ф·I / 2
W = 0,5·10/2 = 2,5 Дж