Define the term \'mutual inductance\' between the two coils. Obtain the expression for mutual
Channel: Doubtnut
Date: 2020-01-19

Define the term \'mutual inductance\' between the two coils. Obtain the expression for mutual inductance of a pair of long coaxial solenoids each of I and radii `r_(1) and `r_(2)(r_(2)gt gt r_(1))`. Total number of solenoids are `N_(1) and N_(2)` respectively.