A. Brass
B. Copper
C. Zinc
D. Ebonite
Related Mcqs:
- Substances which have permeability less than the permeability of free space are known as_____________?
A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. bipolar - The initial permeability of an iron rod is________________?
A. the highest permeability of the iron rod
B. the lowest permeability of the iron rod
C. the permeability at the end of the iron rod
D. the permeability almost in non-magnetised state - The relative permeability of materials is not constant
A. diamagnetic
B. paramagnetic
C. ferromagnetic
D. insulating - The relative permeability is less than unity is case of_____________?
A. ferromagnetic materials
B. ferrites
C. non-ferrous materials
D. diamagnetic materials - Reciprocal of permeability is____________?
A. reluctivity
B. susceptibility
C. permittivity
D. conductance - The unit of relative permeability is_____________?
A. henry/metre
B. henry
C. henry/sq. m
D. it is dimensionless - For which of the following materials the net magnetic moment should be zero ?
A. Diamagnetic materials
B. Ferrimagnetic materials
C. Antiferromagnetic materials
D. Antiferrimagnetic materials - Which of the following statements is correct ?
A. The magnetic flux inside an exciting coil is lower than its outside surface
B. The magnetic flux inside an exciting coil is zero
C. The magnetic flux inside the exciting coil is greater than its outside surface
D. The magnetic flux inside the exciting coil is same as on its outside surface - Which of the following materials are diamagnetic ?
A. Silver
B. Copper
C. Silver and copper
D. Iron - Indicate which of the following material does not retain magnetism permanently
A. Soft iron
B. Stainless steel
C. Hardened steel
D. None of the above
