Task id15405
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Task id15405
a) A direct current flows through the coil with a very large relaxation time constant. When the current is interrupted, a strong arc flashes at the switch blades, which can be dangerous in circuits with high inductance. Explain this phenomenon. b) In a circuit containing LR, can the emf. self-induction at any moment will be greater than the emf. batteries?
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Detailed solution. Format gif
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