Yokes with rectangular cross-section are used for

Related MCQs

• Which ofthe following materials is used in the manufacture of resistance grids to be used in the starters of large motors ?
• is universally used for windings of electrical machines because it is easily workable without any possibility of fracture.
• ________ has a lowrelative permeability and is used principally in field frames when cost is of primary importance and extra weight is not objectionable.
• ______is extensively used for those portions of magnetic circuit which carry steady flux and need superior mechanical properties ?
• Which ofthe following methods is used for air cooling of turbo-alternators ?
• Multiple inlet system of air cooling of turbo-alternators can be used for machines of rating upto
• Which of the following is the commonly used type of electromagnets ?
• are used for construction of core of electromagnets.
• The winding where dummy coils are used is sometimes called
• Dummy coil should not be used in