Ferrites are materials

Related Mcqs:

1. Ferrites are a sub-group of_______________?

   A. non-magnetic materials B. ferro-magnetic materials C. paramagnetic materials D. ferri-magnetic materials...

2. 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...

3. 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...

4. 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...

5. For which of the following materials the saturation value is the highest ?

   A. Ferromagnetic materials B. Paramagnetic materials C. Diamagnetic materials D. Ferrites...

6. Which of the following materials are diamagnetic ?

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

7. 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...

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

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

9. 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...

10. The materials having low retentivity are suitable for making_____________?

    A. weak magnets B. temporary magnets C. permanent magnets D. none of the above...