ElectroMagnetic InductionMedium
Question
A solenoid of 10 henry inductance and 2 ohm resistance, is connected to a 10 volt battery. In how much time the magnetic energy will be increases to 1/4 th of the maximum value?
Options
A.3.5 sec
B.2.5 sec
C.5.5 sec
D.7.5 sec
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