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Question: A solenoid has an inductance of 60 henrys and a resistance of 30 ohms. If it is connected to a 100 volt battery, how long will it take for the current to reach $\frac{{e - 1}}{e} \approx 63.2\% $ of its final value



1) 1 second
2) 2 seconds
3) e seconds
4) 2e seconds
Solution: Explanation: No Explanation
Self Inductance Mutual inductance Static EMI

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