A small conducting loop of radius a and resistance r is pulled with velocity V perpendicular to a long straight conductor carrying a current i as shown in fig the current I in terms of V is
As we have learned
Induced Current -
- wherein
Resistance
Rate of change of flux
MAgnetic field at position of loop
Since loop is small , magnetic field can be assumed to be constant .
So, flux across loop
=
Now induced enf ,
Now induced current