If residual magnetism is present in a D.C. generator, the induced e.m. – McqOptions

MCQOPTIONS

1.	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
Answer» B. small

Discussion

No Comment Found

Related MCQs

The noise resulting from vibrations of laminations set by magnetic forces, is termedas
As a result of armature reaction, the reduction in the total mutual air gap fluxin aD.C. generator is approximately
N atural air coo ling is generally restricted for transformers up to
Buses, trains, trolleys, hoists, cranes require high starting torque and therefore make useof
For the parallel operation of single phase transformers it is necessary that they shouldhave
No-load speed of which of the following motor will be highest ?
In case-the conditions for maximum power for a D.C. motor are established,theefficiency of the motor will be
Which of the following parts of a transformer is visible from outside ?
Which of the following is the most likely source of harmonics in a transformer ?
The no-load current drawn by transformer is usually what per cent of the full-loadcurrent ?