Page 65 - Basic Electrical Engineering

Since the linear velocity v of the conductor,

e = Blν V (1.27)

If the conductor moves in a direction making an angle θ with the direction of

magnetic field as shown in Fig. 1.12, the induced EMF will be as stated
earlier in eq. 1.26.

e = Blν sinθ V (1.28)

1.13 DYNAMICALLY INDUCED EMF AND STATICALLY INDUCED EMF

When emf is induced in a coil or conductor by virtue of movement of either
the conductor or the magnetic field, the emf is called dynamically induced
EMF as has been explained in section 1.11.

When EMF is induced in a stationary coil by changing its flux linkage due
to change in current flow through the coil, such emf is called statically

induced EMF.
If a coil carries a current, flux is established around the coil. If the current
is changed quickly, the flux linkage by the coil will change as shown in Fig.

1.13 (a).