Which of the following statements is correct ?

Related Mcqs:

1. Which of the following statements is correct ?

   A. The conductivity of ferrites is better than ferromagnetic materials
   B. The conductivity of ferromagnetic materials is better than ferrites
   C. The conductivity of ferrites is very high
   D. The conductivity of ferrites is same as that of ferromagnetic materials

2. Out of the following statements, concerning an electric field, which statement is not true ?

   A. The electric intensity is a vector quantity
   B. The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point
   C. An electric field is defined as a point in space at which an electric charge would experience a force
   D. Unit field intensity in the exertion of a force of one newton on a charge of one coulomb

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. Which of the following materials are diamagnetic ?

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

5. 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

6. Which of the following is expected to have the maximum permeability ?

   A. Brass
   B. Copper
   C. Zinc
   D. Ebonite

7. Which of the following is not a unit of flux?

   A. Maxwell
   B. Telsa
   C. Weber
   D. All of the above

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. Which of the following is a vector quantity ?

    A. Relative permeability
    B. Magnetic field intensity
    C. Flux density
    D. Magnetic potential