Magnetising steel is normals difficult because____________?

Related Mcqs:

Core of an electromagnet should have____________?

A. low coercivity B. high susceptibility C. both of the above D. none of the above...

The stray line of magnetic flux is defined as_____________?

A. a line vertical to the flux lines B. the mean length of a ring shaped coil C. a line of magnetic flux in a non-uniform field D. a line of magnetic flux which does not follow the designed path...

he retentivity (a property) of material is useful for the construction of__________?

A. permanent magnets B. transformers C. non-magnetic substances D. electromagnets...

Which of the following is a ferromagnetic material ?

A. Tungsten B. Aluminium C. Copper D. Nickel...

The direction of magnetic lines of force is________________?

A. from south pole to north pole B. from north pole to south pole C. from one end of the magnet to another D. none of the above...