Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An iron core solenoid of length l and cross-sectional area A having N turns on it is connected to a battery through a resistance as shown in the figure. At instant t=0, the iron rod of permeability mu from the core is abruptly removed. Find the current as a function of time.

An iron core solenoid of length l and cross-sectional area A having N turns on it is connected to a battery through a resistance as shown in the figure. At instant t=0, the iron rod of permeability mu from the core is abruptly removed. Find the current as a function of time.

An iron core solenoid of length l and cross-sectional area A having N turns on it is connected to a battery through a resistance as shown in the figure. At instant t=0 the iron rod of permeability mu from the core is abruptly removed. Find the current as a function of time.