The unit of retentivity is____________?

Related Mcqs:

The relative permeability of a ferromagnetic material is_____________?

A. less than one B. more than one C. more than 10 D. more than 100 or 1000...

While comparing magnetic and electric circuits, the flux of magnetic circuit is compared with which parameter of electrical circuit ?

A. E.m.f. B. Current C. Current density D. Conductivity...

Laminated cores, in electrical machines, are used to reduce____________?

A. copper loss B. eddy current loss C. hysteresis loss D. all of the above...

Hysteresis loss least depends on____________?

A. volume of material B. frequency C. steinmetz coefficient of material D. ambient temperature...

Point out the wrong statement. Magnetic leakage is undesirable in electric machines because it___________?

A. lowers their power efficiency B. increases their cost of manufacture C. leads to their increased weight D. produces fringing...