Measuring Magnetization by Induction Method:

(iii) Moving the coil into or out of the field:

Figure 29.03 displays the situation of moving coil into or out of the magnetic field. In this case, the values B and N are fixed and the area changes with time. Taking N as 3 and B as 0.2 T, and ΔA/Δt as 0.2m²/s, the voltage induced in the circuit is determined to be:

Figure 29.03: Schematic of moving a coil into or out of the magnetic field.

(iv) Rotating coil in magnetic field:

Figure 29.04 displays the arrangement of rotating coil relative to the magnet in the magnetic field. Taking the values B, ΔA/Δt and N as 0.2 T, 20 and 0.2m²/s, respectively, the voltage induced in the circuit is:

Figure 29.04: Schematic of rotating a coil in magnetic field.