The materials having low retentivity are suitable for making_____________?

Related Mcqs:

1. he retentivity (a property) of material is useful for the construction of_______________?

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

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

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

3. Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials

   A. circular B. triangular C. rectangular D. none of the above...

4. A 200 turn coil having an axial length of 30 mm and a radius of 10 mm is pivoted in a magnetic field having a flux density of 0.8 T. If the coil carries a current of 0.5 A, the torque acting on the coil will be_____________?

   A. 8 N-m B. 0.48 N-m C. 0.048 N-m D. 0.0048 N-m...

5. 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...

6. The susceptibility of paramagnetic materials generally lies between____________?

   A. KT3 and 1CT6 B. 1CT3 and 1CT7 C. KT4 and KT8 D. 10″2 and KT5...

7. Which of the following materials are diamagnetic ?

   A. Silver B. Copper C. Silver and copper D. Iron...

8. Which of the following type of materials are not very important for engineering applications ?

   A. Ferromagnetic B. Paramagnetic C. Diamagnetic D. None of the above...

9. The materials are a bit inferior conductors of magnetic flux than air

   A. ferromagnetic B. paramagnetic C. diamagnetic D. dielectric...

10. Paramagnetic materials have relative permeability________________?

    A. slightly less than unity B. equal to unity C. slightly more than unity D. equal to that ferromagnetic mate rials...