Which of the following does not change in an ordinary transformer ?

Related Mcqs:

The permissible flux density in case of cold rolled grain oriented steel is around__________?

A. 1.7 Wb/m2 B. 2.7 Wb/m2 C. 3.7 Wb/m2 D. 4.7 Wb/m2...

A common method of cooling a power transformer is_______________?

A. natural air cooling B. air blast cooling C. oil cooling D. any of the above...

The value of flux involved m the e.m.f. equation of a transformer is____________?

A. average value B. r.m.s. value C. maximum value D. instantaneous value...

Which of the following properties is not necessarily desirable for the material for transformer core ?

A. Low hysteresis loss B. High permeability C. High thermal conductivity D. Adequate mechanical strength...

Which of the following parts of a transformer is visible from outside ?

A. Bushings B. Core C. Primary winding D. Secondary winding...