Q. A rectangular loop has a sliding connector of length and resistance and it is moving with a speed as shown. The set-up is placed in a uniform magnetic field going into the plane of the paper. The three currents are

NTA AbhyasNTA Abhyas 2022 Report Error

Solution:

A moving conductor is equivalent to battery of emf
(motion emf)
Equivalent circuit


Applying Kirchhoff's law

...(ii)
Adding Eqs. (i) and (ii), we get