A solenoid has an inductance of 50 mH an...

A solenoid has an inductance of 50 mH and a resistance of `0.025 Omega`. If it is connected to a battery, how long will it take for the current to reach one half of its final equilibrium value?

`1.34 s`

`1.38 s`

`1.38 ms`

`0.23 s`

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