What will happen to the inductance of a solenoid  a. when the number of turns and the
Channel: Doubtnut
Date: 2020-07-26

What will happen to the inductance of a solenoid  a. when the number of turns and the length are double keeping the area of cross section same?  b. when the air inside the solenoid is replaced by iron of relative permeability `mu_(r)`?