a. Calculate the inductance of an air core solenoid containing `300` turns if the length
Channel: Doubtnut
Date: 2020-07-12

a. Calculate the inductance of an air core solenoid containing `300` turns if the length of the solenoid is `25.0cm` and its cross -sectional area is `4.00cm^2`.  b. Calculate the self -induced emf in the solenoid if the current through it is decreasingg at the rate of `50.0A//s`.