The Biot-savart’s law is a general modification 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 unit of flux is the same as that of_______________?

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

3. Gilbert is a unit of_______________?

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

4. Ferrites are a sub-group of_______________?

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

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 stray line of magnetic flux is defined as_____________?

   A. a line vertical to the flux lines B. the mean length of a ring shaped coil C. a line of magnetic flux in a non-uniform field D. a line of magnetic flux which does not follow the designed path...

7. What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ?

   A. 22 x 10″8 N B. 22 x 10″7 N C. 22 x 10-6 N D. 22 x 10″5 N...

8. A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be____________?

   A. 240 N B. 24 N C. 2.4 N D. 0.24 N...

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. The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is________________?

    A. proportional to 7 B. proportional to X C. proportional to distance between the conductors D. inversely proportional to I...