Lessons

Eamcet Physics
2 nd Year : Unit 4.1 ( Alternating Current ) - Alternating Currents

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Q.

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 e-1/e=63.2% of its final value

View Answer

Correct choice: B

Explanation:

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