A small square loop of wire of side l is placed inside a large square loop of side L `(Lgtgtl)`. The loops are coplanar and their centres coincide. Find the mutual inductance of the system.

A square loop of wire of side 10 cm is placed at angle of 45^(@) with a magnetic field that changes uniformly from 0.2 T to zero in 1 second. Find the current induced in the loop of resistance 1 Omega .

Each side of a hexagonal loop of a metal wire is a. The loop carries a current I. Find the magnitude of the magnetic field at the centre of the loop

A wire loop carrying a current l is placed in XY plane as shown below The extremities M and N of the current loop subtends an angle 120^@ at the centre P of the circular part of the loop. If a particle with charge +Q and mass m is placed at the centre P and given a velocity oversetrarrv along NP, find the instantaneous acceleration.

A very small circular loop of radius a is initially (at t = 0) coplanar and concentric with a much larger fixed circular loop of radius b. A constant current l flows in the larger loop. The smaller loop is rotated with a constant angular speed omega about the common diameter. The emf induced in the smaller loop as a function of time t is

A rectangular loop of metallic wire of length a and breadth b carries a currnet I. Find the magnitude of the magnetic field at the centre of the loop.