The mutual inductance between the rectangular loop and the long straight wire as shown in figure is $M$.
$M =$ Zero
$M = \frac{{{\mu _0}a}}{{2\pi }}\ln \left( {1 + \frac{c}{b}} \right)$
$M =\frac{{{\mu _0}b}}{{2\pi }}\ln \left( {\frac{{a + c}}{b}} \right)$
$M =\frac{{{\mu _0}a}}{{2\pi }}\ln \left( {1 + \frac{b}{c}} \right)$
Two coil $A$ and $B$ have coefficient of mutual inductance $M = 2H$. The magnetic flux passing through coil $A$ changes by $4$ Weber in $10$ seconds due to the change in current in $B$. Then
A coil of radius $1\, cm$ and of turns $100$ is placed in the middle of a long solenoid of radius $5\, cm$. and having $5\, turns/cm$. parallel to the axis of solenoid The mutual inductance in millihenery will be
With the decrease of current in the primary coil from $2\,amperes$ to zero value in $0.01\,s$ the $emf$ generated in the secondary coil is $1000\,volts$. The mutual inductance of the two coils is......$H$
$A$ long straight wire is placed along the axis of a circular ring of radius $R$. The mutual inductance of this system is
Two circuits have coefficient of mutual induction of $0.09$ $henry$. Average $e.m.f$. induced in the secondary by a change of current from $0$ to $20$ $ampere$ in $0.006$ $second$ in the primary will be......$V$