The inductance of the coil and time is mathematically given as
<h3>What is the inductance of the coil and How long after S1 is opened will the current reach 1.00% of its original value?</h3>
Generally, the equation for Current is mathematically given as

Therefore

Hence, the Maximum current is,

Thus,

L=0.1035H
b)
In conclusion, Time taken after S1 is opened is,

Time constant is,



t=12.8 ms
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