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

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. The materials having low retentivity are suitable for making_____________?

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

3. The Biot-savart’s law is a general modification of_______________?

   A. Kirchhoffs law B. Lenz’s law C. Ampere’s law D. Faraday’s laws...

4. The unit of flux is the same as that of_______________?

   A. reluctance B. resistance C. permeance D. pole strength...

5. Gilbert is a unit of_______________?

   A. electromotive force B. magnetomotive force C. conductance D. permittivity...

6. Ferrites are a sub-group of_______________?

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

7. The commonly used material for shielding or screening magnetism is____________?

   A. copper B. aluminium C. soft iron D. brass...

8. Which of the following is a ferromagnetic material ?

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

9. 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...

10. A material which is slightly repelled by a magnetic field is known as_____________?

    A. ferromagnetic material B. diamagnetic material C. paramagnetic material D. conducting material...