For a particular material the Hall coefficient was found to be zero. The material is______________?

Related Mcqs:

1. The metal having the lowest temperature coefficient of resistance is_________________?

   A. gold B. copper C. aluminium D. kanthal...

2. The kinetic energy of a bounded electron is______________?

   A. less than that of unbounded electron B. greater than that of unbounded electron C. equal to that of unbounded electron D. infinite E. none of the above...

3. The co-ordination number of a simple cubic structure is______________?

   A. 2 B. 4 C. 6 D. 8...

4. The structure sensitive property of a super conductor is______________?

   A. critical magnetic field B. transition temperature C. critical current density D. none of the above...

5. A highly conductive material must have___________?

   A. highest conductivity B. lowest temperature co-efficient C. good mechanical strength D. good corrosion resistance E. easy solderable and drawable quality F. all of the above...

6. On which of the following factors does the resistivity of a material depend ?

   A. Resistance of the conductor B. Area of the conductor section C. Length of the conductor D. All of the above...

7. Mercury as an electric contact material is_______________?

   A. a liquid B. a metal C. a metal liquid D. a gas...

8. A good electric contact material should have all of the following properties except_____________?

   A. high resistivity B. high resistance to corrosion C. good thermal conductivity D. high melting point...

9. Which of the following is a semiconductor material ?

   A. Phosphorous B. Rubber C. Silicon D. Aluminium...

10. Surface resistance of an insulating material is reduced due to the______________?

    A. smoky and dirty atmosphere B. humidity in the atmosphere C. both (A) and (b) D. neither (A) nor (b)...