____________are used for construction of core of electromagnets?

Related Mcqs:

__________is extensively used for those portions of magnetic circuit which carry steady flux and need superior mechanical properties ?

A. Grey cast-iron B. Cast steel C. High carbon steel D. Stainless steel...

In direct cooled system using hydrogen both stator and rotor conductors are made____________?

A. solid B. hollow C. perforated D. any ofthe above...

Which of the following methods may be adopted to reduce the effects of armature reaction ?

A. Increase in length of air gap at pole tips B. Increasing reluctance of pole tips C. Compensating windings D. Interpoles E. All of the above...

Which of the following is the basic consideration in the design of insulation ?

A. Electrical considerations B. Mechanical considerations C. Thermal considerations D. All of the above...

The input impedance of a JFET is _____________that of an ordinary transistor?

A. equal to B. less than C. more than D. none of the above...