Determine the direction of induced
current in each loop using Lenz’s law FIGURE 6 7
Solution
(i)
The magnetic flux through the rectangular loop abcd increases,
due to the motion of the loop into the region of magnetic field, The
induced current must flow along the path bcdab so that it opposes
the increasing flux (ii) Due to the outward motion, magnetic flux through the triangular
loop abc decreases due to which the induced current flows along
bacb, so as to oppose the change in flux