If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speedwill be
A)zero
B)small
C)the same as rated voltage
D)high

Question

Quizplus · Accepted Answer

Residual magnetism is the magnetism that remains in a material after the magnetizing force has been removed. In a DC generator, residual magnetism can cause the generator to produce a small amount of voltage even when it is not rotating. This voltage is known as the residual voltage. The residual voltage is typically small, but it can be enough to cause problems in some applications.

If Residual Magnetism Is Present in a D