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Consider a DC motor with 0.1 mH of inductance. 1 A DC current is flowing in...

Consider a DC motor with 0.1 mH of inductance. 1 A DC current is flowing in the motor, what is the voltage drop across this inductance (neglecting resistance for this question)? Subsequently, this 1 A current is switched off and drops linearly from 1 A to 0 within 1μs. How much voltage is created by shutting off this current? Explain how the electronics is protected from this current.

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